f.i. or f.o.
Fit in or fuck off is when you’re told to be like the boss or else you’re fired. It’s like being forced to join a cult.
My coworker got the message, 'Fit in or fuck off, or I’ll make you a meme.'
At the meeting, the boss said, 'Fit in or fuck off, or I’ll replace you with a drone.'
The new hire was given a warning: 'Fit in or fuck off, or you're gone.'