A simple game for men in which they place each hand at opposite sides of their navel area, and bat their penis back and forth in succession in order to get as many knocks as possible. In order for competitive play, one hand can be substituted for another persons hand.

A jack off buddy (from 'cum' /'come', meaning 'semen', and 'companion'); a friend that you get together with for sessions of solo or mutual masturbation
Variant of: cumpanion (from 'companion' & 'cum'); jack off buddy & wank bud & JO buddy
Similar to: fuck buddy

One who cuts off his own penis and smacks people with it.

used in place of words like gay, stupid, queer, dumb, ect... when describing someone or something.