Pronounced "Dum-burrz", they are a variation of "numbers" necessary to complete and assignment. When one cannot figure out the correct numeric arrangement for the equation, one may utilize estimating skills and dumb-assery to create "dumberz". Thus completeing homework crappily...but punctually.
Scott: This sucks, there's not a single constant that fits here.
Ryan: Word, homie.
Scott: Screw this, UNLEASH da dumberz!!!(**proceeds to fill out furmulae with a guessed numeric variable.)