WUF
WUF has 2 meanings
Wow, you're funny
In messages, people may send "wuf" as a more creative way to respond to a humorous comment than the typical LOL. Most people use it genuinely to remark on a person's sense of humor (SOH), but they may also use it sarcastically.
For example, you may flirt with a girl you met online through DMs and send her, "wuf. I love that meme! ;)" Or, if you are in a text thread and an annoying acquaintance shares an offensive joke, you may reply with a cold "wuf. did u think of that 1 all by urself?"
Example
I laughed so hard when I gave you bunny ears in that picture!
wuf
Can you score under par in this golf terms quiz?
An acronym that may be used in online conversation when getting to know someone; the more grammatically correct version is -- "Where are you from?"