piss brains 

1. A brain which is actually filled with nothing but piss.
2. Some idiot who has pissed on his brains.
3. A good name to call a dunce.
4. Useless fool.

A dumbass who has verbal diarrhoea. (good name to call someone, i.e. your best pal)

piss brains by Mr Piss-Brains January 29, 2004

Piss Brain

(n) The distracted mental state resulting from a serious need to urinate. Usually resulting in a delay to relieving said need.

I totally screwed up the last 3 answers on the exam because I had Piss Brain.

My Piss Brain was so acute I had a hard time unzipping my pants.

Piss Brain by barfeedbob October 6, 2011

pissbrain 

Similar to a peabrain but with a much greater measure of stupidity; only a true retard could be a pissbrain.

May also be used to describe some asshaberdasher who actually urinates into his brain by connecting a small-diameter hose from their ding-a-ling (or peehole) to one of their ears (probably one with a busted tympanic membrane {eardrum}) and then passing micturition through rhe tube; thus filling their cranium with piss..

Geez, look at Horhay over there attempting to force a triangular peg through a circular opening! What a fucking pissbrain!

pissbrain by Telephony March 20, 2014