noun. 1) A rare, medically preposterous procedure. 2) A person who would make you grateful to know a buttwipe.
Related term: assbortion.
Real citation: “Are you...*gasp* saying you want me to have a buttbortion? I'm having this butt baby. I thought you would be happy.”
(Oct. 5, 2006, http://126.96.36.199/search?q=cache:_F9kVQXOVroJ:profile.myspace.com/index.cfm%3Ffuseaction%3Duser.viewprofile%26friendid%3D20346228+buttbortion&hl=en&ct=clnk&cd=1&gl=us)
Made-up citation: "As a brother, you are a buttbortion. But as a lover, you are a Viking. My Viking."