Top definition
A popular call prior to sculling or shotting alcohol.

Up The Bum... No babies
Loft glass in air

Person 1: Up the bum
Rest: No babies

Variation

Person 1: UTB
Rest: equals NB

UTB=NB
by Ryza April 27, 2006
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