Top Definition
A person that makes a big mistake or a bunch of recurring little mistakes that add up to a big huge whale of a mistake.
My biology partner is a mistake whale, he always fucks up when we have a lab.
by bonher123 February 09, 2011
One who either makes a big mistake or plenty of little mistakes which combined make a BIG MISTAKE!
My biology partner is a mistake whale. He fucks up nearly every lab we do.
by bonher123 February 07, 2011
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