To say 'sup' by throwin out your 2 fingers in a sort of sidewayspeace sign. Used for all forms of greeting, i.e goodbye, hello, c ya, nice to meet you...
The act of leaving and saying goodbye to everyonein the room at once by throwing two peace signs up. The act of chucking them depends on the chucker; some throw it to the side, some do the Richard Nixon and some just say "deuces".