Mistype of No ninja, Gatti in World of Warcraft, Yells to group Boninja, Group starts yelling Boninja after every loot, When you hear Wow you think Leroy Jenkins and Boninja
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
pronounced "bone-ination" -- the art of a single male propogating multiple females simultaneously; often involves a fee; also, videotaping that sweet cash is common