Considered a sexual act.. When partners begin deficating in their own hands and then throw fecal matter at each other.. (Similar to the acts of a chimpanzee)
Chimping is when a little chimpy starts going mental. For examples when Abhi starts chimping in the car, he starts acting like hes got Tourette's. There is immediate jungle noises and chimp chatter with bananas going everywhere. He starts saying uh basically basically OOGA BOOGA.