A phrase originally coined by David Lettereman, during the writers' strike in the late 80s. He was referring to the T.V. and movie companies that refused to accept the writers guild's offer.
Today, there are many other instances of money grubbing scum causing problems for working people. Big businesses so often putting profits before the interests of people.
A common example: A big corporation moved their factory to China, eliminating 1000s of American jobs, the money grubbing scum C.E.O. received a huge bonus.
Money grubbing scum is destroying the American dream for many working people, by eliminating good paying jobs and weakening unions.
Also, Wal-mart is one of the worst cases of money grubbing scum in the history of retail! Those heartless anti-American bastards are one of China's top 5 customers!
Someone who feels the need to have a better score than anyone else in the known (and perhaps unknown) universe. If someone gets a higher score, the grade grubber seeks an immediate answer to the question of why s/he does not have the highest, bestest, prettiest score, most colorful star, or brightest happy face sticker, and thus proceeds to not shut up about it for 12 days until the next grade issue arises.