Top definition
Uncontrollable laughing. Unable to cease laughing when wanting to. Most commonly induced by overtiredness, mental fatigue & coping with stress.
1) I felt bad for that news anchor on News9 who had a bad case of the laughies while reporting live on that recent homicide.

2) I had a case of the laughies today while at my job interview. I doubt I'll get the job.
by ChaoticLunatic May 13, 2009
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