buns-o-matic Share definition Flag a catchphrase used when a person has done something really poorly. Usually refers to a sport. Girl 1"wow I just bowled a 38...."Guy 2"well...thats buns-o-matic!" buns-o-matic by jmanpsu April 18, 2010 0 0 Get merch Get the buns-o-matic mug. Buy Now — $32.95 See more merch