lalalalalooooo Share definition Flag 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! lalalalalooooo by bigredd22 February 3, 2010 0 0 Get merch Get the lalalalalooooo mug. Buy Now — $32.95 See more merch
