Could be a reference to an annoying or self absorbed person who could either be bragging far too much or putting others down in a manner that is unacceptable.

This could also be used as a cuss word for when you may be in trouble, angered at something that has happened at that immediate moment, or are in the process of being completely screwed. This is similar to the meme "FFFUUUU!"
James: Hey, I got an A+ on the test and you got a D. You fail! Haha!

Cory: You buttfuck...
---

Tim: I'm being mauled by the zombies! HEELP!

Michael: I'm at the other side of the map, I can't help you!

Tim: BUUUUTFUUUUUUUCK
by Ancubius July 30, 2010
10 Words related to Buttfuck
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Look at that! It's a buttfuck!
by sdfgbnsvkbg December 16, 2009
What happens to you when you use AOL.
I signed up for 300 free hours with AOL, and then preceeded to bend over and spread my cheeks...
by Hiro August 29, 2003
The best sex. Insert penis into anus.
I butt fuck my boyfriend at least once a day. He prefers to butt fuck doggy style.
by badlandsboy December 23, 2003
to ram in the ass with a penis or dildo
dickhead
i want to buttfuck your sister
by fartsniffer May 25, 2002
sex where a penis penetraits someone's anus
Sheryl almost died when tom asked her if she wanted to butt fuck
by Anonymous June 16, 2002
anal sex

(to DO IT in the butt)
gay guys buttfuck.
by Anonymous January 31, 2003

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