Top definition
The assboom refers to a large bomb of watery feces exploding in your anus.
"Oh my god, I'm having an assboom!"
by MooCow March 19, 2005
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