Mono ab 

1 large ab formed from beer and over indulgence

Look at the Mono ab on him

Mono ab by gryphonhearted April 28, 2010

mono-ab

when all six abs merge together. classy way to say beer-gut.

Person 1- wow, that guy in mcdonalds is so fat!
Person 2- no way! he just has a mono-ab.

mono-ab by celestinator June 6, 2010