Definitions by P. Heifner

runaway laugh 

to become overcome with so much laughter that one has to run out of the room. the laugher is usually seen with a fist over there mouth and bumping into people as they make there exit.

Jamal was so overcome by an old episode of 'Martin' that he was last seen doing a runaway laugh into the kitchen.

runaway laugh by P. Heifner May 19, 2008