Top definition
A single serving of a brownie put into a mug, made in the microwave.
Dude, my mug brownie got stuck in the mug last night.
by Ali Redling July 23, 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