ass frown Share definition Flag When you're asshole has gone past the OMG "o" and has collapsed back on itself, forming a frown "∩". You should have seen him when we were done, his hole was nothin' but an ass frown! ass frown by dingus mcfly December 4, 2010 0 0 Get merch Get the ass frown mug. Buy Now — $32.95 See more merch