Top Definition
The phenomenon in which when one person in a group commences laughing, the rest will follow. The laughter genuine, and can often last for two to three minutes. Usually, this group is often a)high b)idiots c)have been previously laughing at something else, and is thus easy for the laughter to recommence.
Person A laughs. Person B, C, D, E, and F also laughs. This is the laughing domino effect.
by Greg Hanches April 01, 2008

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt