Top Definition
An inflammatory term for someone who is acting weird; i.e. freakish, gross, annoying or overreacting to little things.

Also used as a generic insult with no real meaning other than to offend.

Used in a multitude of forms.
"Look at Andrew over there trying to flirt, what a grebe."

"Who's the fucking grebe who stole my wallet?"

"Dude, he doesn't want to stab us, he doesn't even know us. Stop grebin' out."
by Jonny22 September 14, 2011

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waterfowl
by Anonymous April 04, 2003

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A whore
Beth: fuck all them grebes!!

Sam: omg dude i know GREBES they're everywhere!!!
by lawlasaurusrex March 11, 2011

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A company that produced radio equipment in the 1920's. They are well-known for the Grebe Synchrophase reciever.
The Grebe Synchrophase was an attempt at simplifying the three-dial tuning system that was common at the time.
by BlastMaster June 06, 2003

The Urban Dictionary Mug

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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sland word fr greebo used mainly by goths
oh my god u dirty grebe
by dee tedds August 08, 2006

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The Urban Dictionary Mug

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt