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1.
laughing and clapping on one foot
guy 1: i got totally pwoned one halo wars yesterday and it was my dad who did the pwoning.

guy 2: LACOOF!!!!
by patrick-jon doolan January 19, 2009
 
2.
Laughing and clapping on one foot
Guy 1: my mother just died
Guy 2: LACOOF
by taylor mcconnelllll January 07, 2009
 
3.
Laughing And Clapping On One Foot
Guy 1:Wow LOL
Guy 2:No LACOOF
Guy 1:LACOOF?
Guy 2:Laughing And Clapping On One Foot
Guy 1:Ooooo
Guy 2:LACOOF
by karremans January 07, 2009