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1 definition by Not a Greg fan

 
1.
A Greg in the wild will often drink in excess and then lose all sense of self. Others around him are often left red faced and ashamed that they have taken a Greg under their wing. Don't let a Greg fool you, they will go by another name to cover up their true identity. Watch out for these predictable creatures, approach with caution!
"I thought that guy was chill, but he was just a Greg."
by Not a Greg fan August 08, 2008