Arabic slang for "fingering". Where the 3 indicates the Arabic letter 'ein'

The following hang gesture may accompany this word:
Hand up, palm facing forward, fingers pointing up, except for the middle finger, which is pointed forward. The hand is thrust backwards and forwards in a "fingering" motion.

Can be used to indicate when someone has been "owned", been made to look like a fool, or been disproved.

A casual invitation / threat used by an individual that is not afraid of fucking someone up.