buttsperiment Share definition Flag Having anal sex with another man in college while identifying as straight. "Come on, bro, don't you want to buttsperiment?""Dude, it's not gay - it's just a buttsperiment." buttsperiment by deiXmachinis October 14, 2009 0 0 Get merch Get the buttsperiment mug. Buy Now — $32.95 See more merch
