Top Definition
1. A yellow colored balloon signifying good luck and wild nights to come. (originated from a balloon found during the summer of yolo by a member of a group known as the yolooniticz)

2. Ones rear end or rump.
1. person 1:"Pull the car over there's a bunch of yoloons hanging off that apartment sign!"

person 2:"Oh SHIT you're right!!!" (runs out of the car and snagz 3 yellow balloons)

person 1:"Oh hell yeah tonight's gonna be a good night!"

person 2: "Bruh"

person 1: "Bruh.... by the way when you jumped up to grab those YOUR YOLOON WAS SHOWING! just thought I'd let you know."

2. Person 1:"Oh no that dog is pulling down his pants"

Person 2:"Hey dude! YOUR YOLOON IS SHOWING"

Person 1:"And what a fine yoloon it is..."

Person 2:"yee"
by spennybee August 29, 2012

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