look up any word, like blumpkin:
 
1.
1. The muscle that makes your nutsack move vertically when you take a deep breath.

2. A general term for the scrote.
When it seems inevitable that something will hit your dude pieces, take a deep breath in order flex your ballsackimus maximus which will tuck the nuts as close to your body as possible.
by Captain Tubesock December 13, 2007

Words related to Ballsackimus Maximus

balls ballsack nuts nutsack scrote scrotum