grogasm Share definition Flag An orgasm had by a fag whilst having his ass pounded by his butt-buddy. The bottom blows a nut while shitting all over his buddies dick. The urban dictionary editors are a bunch of walking grogasms. grogasm by The_JDH August 16, 2009 0 0 Get merch Get the grogasm mug. Buy Now — $32.95 See more merch