n. hip-hop slang: 1. A buck is used to refer to 100, and the
second part is the second part. Can refer to speeds (I was
doing a buck ninety on the highway), weights (that guy weighs about a buck seventy), scores (the knicks hit a buck fifteen).
2. A term for shooting. When someone says 'a buck fifty', they are referring to the .50 AE round used by the Desert Eagle handgun made by IMI and
reproduced by Magnum Research.