Top Definition
1. An amazing athelete who excels at sports. Notable Grinalds': Andrew Grinalds and Lucy Grinalds.

2. To totally mess something up beyond repair.
1. Dayum that Michael Phelps is such a Grinalds.

2. I can believe she called the cops! She totally Grinaldsed it up.

or

He just got us all expelled. What a Grinalds.
by meow__ February 12, 2009

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