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!"
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...
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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
Cory: You buttfuck...
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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
Get the Buttfuckmug. by UntamedGorilla June 25, 2009
Get the Buttfuckmug. don't even look up buttfuck
by JoeyG012 September 3, 2014
Get the Buttfuckmug. 
When the people at gamestop buy your 50$ game for 9$, then they put it right back on the shelf for 49.99$.
Clerk: Hi welcome to gamestop, can I interest you in a buttfucking.
Customer: No thanks, I'll just sell my shit on ebay.
Customer: No thanks, I'll just sell my shit on ebay.
by Gamer69 August 29, 2012
Get the Buttfuckingmug. by Hiro August 29, 2003
Get the buttfuckmug. i want to buttfuck your sister
by fartsniffer May 25, 2002
Get the buttfuckmug.