Definitions by Writa

grebo 

1: A word used by chavs/trendies to describe anybody who is not a chav or a trendy. These include goths, skaters and any other form of identity.
2: Another word to describe a punk
3: Someone who listens to Green Day

"Dude, you have baggy jeans, you got rid of your baseball cap, you listen to Green Day - your a totaly grebo!"

grebo by Writa September 28, 2005