look up any word, like kappa:
Laughing at Aviation or LAA is the overall parent term of
ROFLCOPTER, LOLPLANE, LMAOHANDGLIDER. It is to express extreme laughter that is like experiencing all three at once.
DUDE 1: CHeck out this compilation of fat chicks falling down!
Me: Laughing at Aviation.
by Cillian S November 01, 2007