A combination of the words dumbass and retard. To be used in an extreme case where someone is being or has done something insulting enough to be called both names
Example 1: Drama fell asleep in his platters and then preceded to lean on a rolling chair...WHAT A DUTARD

Example 2: Kash Monay said "let's go on vacation out of the country, let's go to to Hawaii!"....WHAT A DUTARD
by Pappu master November 9, 2011
Get the dutard mug.