Also many times known as choppin. This is a term for hitting on a girl. Most times one asks their friend if they are chopping by yelling ( Friends name) you be choppin? Another method used to prevent the one being chopped on from hearing the question is to make karate chop motions up and down many times quickly in the air with both hands.
Looks like John over there is chopping on that hot red head in the white dress.
Hey Mike you be chopping on that girl cause if not I am moving in.