Top definition
A sound made by one expressing disapproval after anothers often outlandish and rediculous comments.
Person 1: Man I am so cool and all the ladies love me!

Person 2: Lalalalalooooooooooo!
by bigredd22 February 03, 2010
Mug icon

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