diddlewink
verb: when you laugh so hard that a tiny amount of urine escapes, but not quite enough to be considered peeing your pants/wetting yourself.
Person 1: that joke was SO funny!
person 2: did you diddlewink?
Peron 1: yea, THAT funny.
person 2: did you diddlewink?
Peron 1: yea, THAT funny.