a spanglish portmanteau derived from panza (mexican slang for large gut) and abs. I. e. a man with an abdomen so muscular his abs are super cut, but are distended. This is most likely a result from heavy steroid or human growth hormone abuse. Commonly seen in body builders. See Roid Belly
All the gay muscle marys took off their shirts at the club. At first i thought the stripper was fat but then i realized he had PABS.