"groaned my ass off", in response to either 1) a pun that was intending for a groan, or 2) a bad joke.
Like gol for "groaned out loud", but to a higher level.
s gamo tin manaaaa!!!!
s gamo to skilo!!!
s gamisa t kolo
s gamisa to afti!!
Gamao..............I rule Gamo tin panagia mou......shit
Gamo to grigori....I like to fuck gay people