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3.
When a gay couple have sex and one guy sticks his penis inside the other dudes butt.
1. He totally gave buttcock to his boyfriend.

2. Stop doing a buttcock on me and do something different.
by -=117=- August 05, 2006
 
1.
A male trannie who tucks and tapes his junk between his buttocks
That trannie was a buttcock he taped his cock between his butt!
by meeow August 02, 2007
 
2.
Self explanatory
Rahul stop waving around your buttcock
by boobs July 28, 2003