| o | Oh | 599
|
| O&O | Over and out | 598
|
| O4U | Only for you | 603
|
| OA | Overacting | 598
|
| OAO | Over and out | 593
|
| OAR | On a roll | 599
|
| OB | Out-of-bounds | 598
|
| Obby | Obstacle course | 581
|
| OBCD | Obesity | 599
|
| OBG | Obstetrics and gynecology | 598
|
| OBGYN | Obstetrics and gynecology | 598
|
| OBO | Or best offer | 599
|
| OBP | On-base Percentage | 600
|
| obs | Obviously | 600
|
| OBTW | Oh, by the way | 597
|
| obv | Obviously | 585
|
| obvi | Obviously | 598
|
| OC | Of course | 600
|
| OC | Original character | 598
|
| OC | Original content | 599
|
| OCD | Obsessive compulsive disorder | 598
|
| OCONUS | Outside of contiguous United States | 601
|
| od | Overdose | 585
|
| OEM | Original Equipment Manufacturer | 599
|
| OF | Outfield | 600
|
| OF | OnlyFans | 598
|
| OFA | Outfield assists | 600
|
| ofc | Of course | 594
|
| Off the hook | Totally awesome | 596
|
| Office rage | Anger from malfunctioning office equipment | 599
|
| OFL | Out for lunch | 597
|
| OG | Original gangster | 577
|
| OG | Original | 596
|
| OG | Olympic grandma | 599
|
| OGP | Online grocery pickup | 598
|
| OGS | Old guy syndrome | 598
|
| OGW | Oh gosh why | 598
|
| oh | Overheard | 597
|
| Oh snap | Expression of surprise | 588
|
| ohemgee | Oh my gosh | 600
|
| OHKO | One-hit knockout | 587
|
| Ohp | Surprised | 597
|
| OI | Opportunistic infection | 596
|
| OIC | Oh, I see | 571
|
| OICN | Oh, I see now | 601
|
| OITNB | Orange is the New Black | 596
|
| oiy | Hi | 602
|
| OJ | Orange juice | 598
|
| OK | One kiss | 599
|
| OK | Oll korrect | 599
|
| OK Boomer | Whatever, old person | 599
|
| OK Millennial | Whatever, young person | 597
|
| OL | Old lady | 598
|
| Oldilocks | Questionable hairstyle on an older person | 599
|
| OLPC | One Laptop Per Child | 602
|
| OLTL | One Life to Live | 599
|
| Olympic grandma | An old female Olympian | 599
|
| OM | Old man | 592
|
| OM | Oh man | 598
|
| Omaha | Change of plans | 601
|
| OMAM | Of Monsters and Men | 600
|
| OMAM | Of Mice and Men | 597
|
| OMC | Oh my Carlisle | 598
|
| OMD | Oh my da**! | 602
|
| OMDB | Over my dead body | 586
|
| OME | Oh my Edward | 595
|
| Omega | Omega male | 599
|
| OMFG | Oh my freaking gosh | 583
|
| OMFGAZ | Oh my freaking gosh and zounds | 599
|
| OMFGYASB | Oh my freaking gosh, you're a sexy beast | 603
|
| OMG | Oh my gosh | 504
|
| OMGD | Oh my gosh, duh | 596
|
| OMGF | Oh my godfather | 601
|
| OMGN | Oh my gosh noob | 601
|
| OMGROFLMAO | Oh my gosh, rolling on the floor laughing my a** off | 602
|
| OMGWTFBBQ | Oh my gosh, what the f***, barbeque | 598
|
| OMGYS | Oh my gosh you suck | 599
|
| OMH | Oh my heavens! | 605
|
| Omicron | COVID-19 Omicron variant | 599
|
| OMJ | Oh my Jonas | 596
|
| OML | Oh my Lord | 594
|
| OMM | On my mind | 594
|
| OMM | On my momma | 597
|
| OMOHOD | One minute, one hour, one day | 599
|
| OMW | On my way | 597
|
| On deck | Batting second | 596
|
| On fire | Performing very well | 598
|
| On fleek | Perfect | 594
|
| On God | I swear to God | 598
|
| On it | Handling that task | 598
|
| On point | Perfect | 599
|
| On the button | Hard hit ball | 600
|
| On the screws | Hard hit | 597
|
| On X Games mode | Doing something extreme very well | 597
|
| ONB | Outward nose breath | 626
|
| onb | On, bro | 599
|
| ONCO | Or nearest cash offer | 600
|
| One and done | Single elimination tournament | 593
|
| oneshot | One shot completion | 583
|
| ONG | On God | 598
|
| Onion check | To check the source of a news headline | 597
|
| onl | Online | 591
|
| Only in Ohio | Claiming Ohio is strange | 568
|
| OnlyPlans | Consistently planning dates but never following through | 596
|
| ONNA | Oh no, not again | 601
|
| ONO | Or nearest offer | 602
|
| onoz | Oh no | 600
|
| ONYD | Oh no you didn't | 599
|
| OO | On order | 599
|
| OO | OpenOffice | 600
|
| OO | Over and out | 598
|
| OOAK | One of a kind | 598
|
| OOC | Out of character | 588
|
| OOC | Out of context | 598
|
| Oof | Exclamation of pain or embarrassment | 599
|
| OOH | Out of here | 598
|
| OOM | Out of mana | 552
|
| OOMF | One of my followers | 593
|
| oomf | Great strain | 601
|
| OOO | Out of office | 589
|
| OOP | Out of print | 600
|
| OOP | Out of pocket | 600
|
| OOP | Out of production | 599
|
| Oops | Exclamation of a mistake | 598
|
| OOT | Out of topic | 600
|
| OOT | Out of town | 592
|
| OOTB | Out of the box | 601
|
| OOTD | Outfit of the day | 595
|
| OOTL | Out of the loop | 595
|
| OOYFM | Out of your freaking mind | 601
|
| OP | Original poster | 594
|
| op | Overpowered | 455
|
| op | Operator | 599
|
| OP | Outta pocket | 598
|
| Opa | Greek exclamation | 597
|
| Ope | Expression of surprise | 596
|
| OPI | Overpaid idiot | 598
|
| OPK | Ovulation predictor kit | 600
|
| OPM | Other people's money | 598
|
| opp | Opponent | 596
|
| Oppo | Opponent | 595
|
| oppo | Opposite field | 599
|
| oprk | Opponent ranking | 598
|
| OPS | On-base Plus Slugging Percentage | 597
|
| OR | Olympic record | 599
|
| Or nah | Or no | 600
|
| Orbiting | Following someone on social media without direct interaction | 600
|
| Oregon trail'r | A person born in the late 1970s or early 1980s | 598
|
| orly | Oh really | 599
|
| OROY | Offensive Rookie of the Year | 598
|
| ORP | Original Retail Price | 600
|
| OSLT | Or something like that | 600
|
| OST | Original soundtrack | 574
|
| OT | Off topic | 591
|
| OT | Other topic | 598
|
| OT | Overtime | 597
|
| OT3 | One true threesome | 589
|
| OTA | Over the air | 600
|
| otay | Okay | 595
|
| OTB | Off the boat | 599
|
| OTC | Over-the-counter | 597
|
| OTD | Older than dirt | 599
|
| OTD | Of the day | 598
|
| OTD | On this day | 599
|
| OTE | Over the edge | 599
|
| OTFLMAO | On the floor laughing my a** off | 600
|
| OTG | On the ground | 599
|
| OTGL | On the ground laughing | 600
|
| OTH | Off the hook | 598
|
| OTK | One turn kill | 597
|
| OTL | Out to lunch | 601
|
| OTL | One true love | 595
|
| OTOH | On the other hand | 599
|
| OTP | On the phone | 583
|
| OTP | One true pairing | 593
|
| OTP | One-time password | 596
|
| OTS | Off the subject | 589
|
| OTS | On the scene | 598
|
| OTS | Open two-seater | 599
|
| OTT | Over the top | 600
|
| OTTH | On the third hand | 600
|
| OTTOMH | Off the top of my head | 595
|
| OTW | Off to work | 596
|
| OTW | On the way | 553
|
| Outkick your coverage | To have a romantic partner who is much more attractive than you | 593
|
| outta | Out of | 599
|
| Outta pocket | Disreputable | 597
|
| Outward nine | First nine holes of an 18-hole golf course | 601
|
| Outwordle | To outsmart a Wordle player | 599
|
| ovie | Overlord | 588
|
| ownage | Completely owned | 586
|
| Owned | Dominated | 599
|
| Owner | Player that controls the minion | 581
|
| OWTTE | Or words to that effect | 601
|