DQYDJ
Don't quit your day job
Example
Sure, you can try to be a professional bowler, but DQYDJ
DQYDJ means "don't quit your day job"
Related Slang
| UDFI | You don't fit in | 
| Stay in your lane | Stick to what you're good at | 
| Gatekeep | To police who has access to an identity or community | 
| MYOB | Mind your own business | 
| terribad | Terribly bad | 
| The struggle is real | Having difficulty doing something | 
| Understood the assignment | Did an amazing job | 
| NJ | Nice job | 
The person who sent you DQYDJ (don't quit your day job) thinks your most recent idea is not a winner. Typically, people respond with DQYDJ after you've sent them an unusually outlandish idea whose merit is especially suspect.
For example, if you tell your BFF that you plan to start a heavy metal band and launch a recording career, they may respond with DQYDJ. This means your BFF doesn't think your band will be very successful (and in true BFF fashion, they're being honest with you).