It's when you bone two or more (usually three) of the hottest babes you know, at the same time. A few rules apply
1) You must know or have met all
the babes
2) They must be
hot as fuck
3) A sum of money may be involved to stimulate their
participation
4) Video equipment may be utilized for future benification
5) You must literally bone every babe, all at once, for it to be true bonination
6) All the babes must get with eachother too
Hombre 1:
So yesterday I achieved bonination
Hombre 2: No way, with who?
Hombre 1: my girlfriend Kat, Liz, and Joy, that chick who works at that mexican
resteraunt