GREG 

Grouping of a womans frontal clothing to make it looks like she has a penis

Damn she is so cute..But what the hell is in the front of her dress...Looks like a greg.

GREG by wekillsuckas buddy November 17, 2009

Greg 

1) An autistic pensioner
2) A walrus

"Hey, look at that old man who can't talk to anyone"

"Yeah, such a Greg"

Greg by cms1213 June 12, 2013

Greg 

Annoying

Greg is very annoying

Greg by yeezyking12 January 26, 2018

greg 

verb. the act of vomiting in an inconvenient situation

present form: gregging

future from: to greg

past form: gregged

Rob was so excited for the baseball game until he gregged on the subway on the way there.

greg by DuckMeat2011 December 13, 2010

Greg 

A boy who sucks donkey testicles, with his panties in a bunch.

God damn Zak, get your panties out of a bunch before people think your Greg.

Greg by blisteredotter February 7, 2010

Greg 

(Noun)
A small penis

(Verb)
To have your penis shrunk by lack of use

Billy has a Greg

Billy uses his dick so little, it has gone Greg.

Greg by moop1@1 April 28, 2008

Greg 

A person who throws up after/during every party where people are getting intoxicated. Even if there isn't any alcohol around he'll find a way to vomit all over your mom's expensive Persian rug.

P1: What happened to my mom's Persian rug?

P2: Looks like Greg pulled a fast one.

P1: But it was only my sister's sixth birthday.. My dad was the only one with alcohol and all he had was a glass of wine!

P2: Greg always finds a way...

Greg by Chestertonsvilleshire April 21, 2009