Top definition
1. verb- To puke in another person's butt.
2. noun- The debris created through the act of puking in another person's butt.
1. Hey, you want to underchunk tonight?
2. OHHH!!! You got underchunk all over the bed!
by zekedafreke August 02, 2008
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