Definitions by Tom (redpill)

mongo 

The action of using three outstretched fingers (most commonly the middle, ring and pinky finger)and sliding across the top of another individuals head and or hair in a hard forceful manor. Mongos are used to express hate towards a person or just to administer great pain or anguish to another being.

I hate that ar-tard so much I mongoed him and his fat head started to wimper

mongo by Tom (redpill) November 10, 2007