Top definition
A really firm man butt. Can also be seen on female body builders.
Ryan has a very nice baflexaflex, I just wanna give it a squeeze.
by Arflahgha November 01, 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