butt bonding 

A male on male sexual activity that occurs when neither partner is too tired or too straight.

Only one day into what seemed an innocuous road trip between friends, Cole and Derek suddenly came to the realization that their relationship could no longer be bearably platonic, and they engaged in the sexual abandon and high art of butt bonding.

butt bonding by Detective Kernel January 23, 2011

butt bonging 

The act of having marijuana smoke blown into one's anal cavity, preferably by a good looking member of the opposite sex, to achieve a potent buzz.

Guy 1: That chick is fine but she is a real shit breather.

Guy 2: That's because she likes butt bonging, she had her tongue in my ass last week!

butt bonging by Stu Nahan October 12, 2011

buttbonding 

what you get when you don't fart for an uncomfortably long time and then you leak a real flabby one.

tanner unleashed his daily buttbonding and proceeded to be showered with farthate from everybody in the zumba class.

buttbonding by isochronismisms! May 30, 2009