look up any word, like sapiosexual:
 
8.
Two or more gay guys that are friends in more ways than one.
They act like they're just friends, but the word on the street is they're butt buddies
by [AfZ]TomServo1 February 13, 2003
153 124
 
9.
Two people who just happen to have buttsex with one an another.
"Please be my buttbuddy?"
by Samm-ay January 09, 2007
50 28
 
10.
Joke used from the TV show Southpark to indicate marriage between a man and another man.

"Carl and Sheen are butt buddies"
by ihatebunnys June 17, 2009
97 79
 
11.
Another word for Bromance or something that describes a homosocial bond between guys.
"Hey Hector, where's your butt buddy?"
by E.L. Alderton November 29, 2011
34 24
 
12.
Two or more platonic people who spend time together like they are joined at the hip/inseparable. Like brothers from a different mother.
Lem and Jen while they are at work
by Biochem Dan May 26, 2005
85 79
 
13.
Someone who you are friends just to fuck.
Neighbor: I heard you guys fucking all night.
You: Yeah, that was me and my buttbuddy.
Neighbor: That? Score!
by MTWEmperor February 14, 2010
13 9
 
14.
The asshole best friend of an asshole.
Joe and his butt buddy Carl annoy the shit out of me.
by schafft April 09, 2008
96 93