this is a phrase often used by Flava Flav, he is a worthless rapper that wears a clock as a necklace.
Flava Flav is in the new Bud Light commercial, and can be heard saying "yeahhhhh boiiiiiiiii."
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