by TheRealDeal86 October 9, 2008

by sasquatch8r October 3, 2009

a cool guy who is always at the gym because he used to be a fatty but now hes thin with a nice bod. he is very friendly and never talks on the phone except with his bfffl.
greg is kayla's best friend forever for life.
by ohmymoses December 14, 2008

To update your Facebook with 30+ updates/links in an hour, usually music videos and posts about how bored you are.
Greg was totally gregging on Facebook last night - he posted 15 Miley Cyrus videos, 10 ABBA videos, and wrote 15 statuses about how much he loves Justin Bieber's hair.
by Chris968 September 25, 2011

A pretty cool kid. He has a fro, is white, and is Christian AND Jewish at the same time. He always shares fries.
by Fitokitte-Sanchez September 23, 2009

{Verb}: Cave Diving Term:
1. To repeatedly hit your tanks on the top of a cave while scuba diving (cave diving).
2. To continually drag your tanks/manifold across the top of a cave while scuba diving.
3. To notch out the edge of a ledge with the leading edge of your valve manifold.
1. To repeatedly hit your tanks on the top of a cave while scuba diving (cave diving).
2. To continually drag your tanks/manifold across the top of a cave while scuba diving.
3. To notch out the edge of a ledge with the leading edge of your valve manifold.
by BBQ Master July 16, 2008

fuck greg
by gregisadouche October 6, 2013
