A Pablo Poocaso is when someone shits on ones chest and then decides to recreate a pablo pacaso painting with there penis as a paintbrush, or as some call it, a poobrush.
Hey Justin bring your fat poobrush over here and finish this damn Pablo Poocaso that you started on Zachs chest.
by Kris.P.Bacon March 3, 2011
Get the Pablo Poocasomug.