Top definition
The act of laughing your ass off in such a tremendous manner that you suddenly find yourself riding the coaster of lmao.
Person 1: -roflcopter worthy joke-

Person 2: Hahahahaha, I just took a ride on the lmaocoaster.
by DoItForTheLolz January 16, 2011
Get the mug
Get a Lmaocoaster mug for your barber Larisa.