1 definition by derpy herpington

Top Definition
pronounced: yeah, boy.

an expression of excitement or achievement, occasionally used to signify agreement.
friend 1: you want to go see that new film tomorrow?
friend 2: yeaboi!

person: The DVDs I ordered finally arrived, yeaboi!

friend 1: this sandwich is awesome!
friend 2: yeaboi.
by derpy herpington June 20, 2011

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