The sexual act of two people licking one another's assholes; considered to be physically impossilbe.
Jim tried to perform the butthole 69 position with Jenny, but ended up snapping his neck in the proccess
by mafioso March 23, 2003
Get the butthole 69 mug.
Only capaple of performace when you have an artificial neck.
I bent my artificial-neck backwards and we butthole-69ed til the blood rushed into my brain.
by Bastardized Bottomburp March 23, 2003
Get the butthole 69 mug.