Top Definition
An emotional roller coaster involving many lolz. Usually a recurring joke. A lolcoaster can last anytime from one hour to a lifetime.
You: Hey Jimmy, remember Mrs. Johnston in Science class last year? She was such a fatty. And an annoying lolcow

Jimmy: OMG yes, I was on a lolcoaster the whole time. Lawls.
#lolcow #lol #roller coaster #joke #lolcrab
by lolhannah May 16, 2010
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.