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1 definition by Greb In Da Corner

A word for someone who is just not quite there, or doing something stupid, or just it can just be used to insult somebody.

Originated around Summer 08.
Person 1 - Would you look at that, Mark's got his shirt on back to front again.
Person 2 - What a greb.

OR along the lines of ''What you looking at, you little greb!''
by Greb In Da Corner September 28, 2008