Definitions by -Snoopy-

anus sex 

The process of the penis using the other persons anus for sensation between to people (non-viginal sex).

Can be tricky and hurts at first. Commonly used between two boys that love each other. Sometimes girls and boys do this together (weird).

Person 1:
i'm bored
Person 2:
wana have anus sex tonight mate ?
Person 3:
yeh ok, sound like fun.

anus sex by -Snoopy- May 5, 2006