quag-gasm Share definition Flag When the male is just about to ejaculate, he shouts out the word "giggaty!" Bryan plugged in to Sophia... 2 minutes later he shouts "giggaty!"... "oh my god.. i just quag-gasm'd". This is a quag-gasm. quag-gasm by bob jespon May 19, 2008 0 0 Get merch Get the quag-gasm mug. Buy Now — $32.95 See more merch