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1 definition by `impulse

 
1.
The act of doing a silent laugh, chuckle or snicker. It is usually performed by widening the nasal cavity, and exhaling a large amount of air through that cavity.

It is used as a substitution for "lol", since the majority of internet users do not actually laugh out loud, but rather leedle.
Guy 1: "Oh em gee, dude. My fart sounded like Chuck Norris cracking his knuckles."

Guy 2: "Leedle."
by `impulse July 24, 2011