An acronym standing for Laughing excessively, So Hard I Cried. LeSHIC is used instead of LOL, LMAO, HAHAHA etc...
Used online to show you find something really funny.
L = Laughing
e = excessively
S = So
H = Hard
I = I
C = Cried
Person 1 - What do smart blondes and UFOs have in common?
You always hear about them but you never see them.
Person 2 - LeSHIC!!!