[sokoloff]

"Good For You!" is code for "Go F** Yourself!" in some circles. (would become the same three-letter acronym)

I'd heard it through two different management consultancy sources, but that could easily have a common root, of course.

[thrillgore]

Alternatively, "Pull Requests Welcome" is also code for "Go f*** yourself."

[tb_technical]

In some communities "Go f** yourself!" is code for "see ya later!", also.

[cosmodisk]

We used to have a Scotsman as a site manager. Every single day when we were wrapping for a day, he used to say: well, fuck off now! Nice bloke.