Top definition
A phrase which is exclaimed to show rejection and dismissal of a statement or situation. Usually used to directly communicate that something that was intended to be funny, was indeed not.
1) "Why did the Chicken cross the road?"

"BULLUP!"

2) *Someone people don't like walks in*

"BULLUP!"
by CrustyMoistYout December 20, 2011
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