Greatio 

A form of great that is greater than great is. A form of an acute awesome.

She played greatio in the concert.

Greatio by Dr. Filis March 17, 2004

greatorex 

A person who wins everything

i have become a greatorex

greatorex by alex G-rex May 13, 2005

Greatinbed

Better-than-average in sexual activities. Exceedling skilled at the art of sexual intercourse and/or foreplay. Provides extreme pleasure and enjoyment to the other (or others) involved. Often respects the partner the next morning.

Glenn is one heck of a love-maker, he sure is a Greatinbed kinda guy!

Greatinbed by Matt Roveberg December 9, 2008

greathorn

A horn that was used by the native americans around the 1700s to determine who was chief in the tribe.

Chief RunningBull won the greathorn in battle

greathorn by sterilite February 15, 2009

Greatcoat 

A double-breasted trenchcoat usually worn in the winter. It was mainly worn in the early 20th century European militaries and the USA.

It might be a bit outdated, but it is still sold on the internet and army surplus stores.

The soldiers of WWII wore kickass greatcoats.

Greatcoat by Jackal1232311322132132 August 30, 2006

Wi-gration 

The act of wandering from spot to spot in search of WiFi (or an improved WiFi connection). People in the process of Wi-gration can be seen stalking through coffee shops, malls and other public spaces while staring intently at their electronic devices for evidence of connectivity.

When word got around that the connection seemed to get stronger beyond Gate 32B, there was a mass Wi-gration through the terminal.

Wi-gration by Anna LeStache January 21, 2013

greatist 

Someone who practices, works toward, and believes in being great.

Mary chose whole wheat over white bread 'cause she's trying to be her greatist.

Paul's a greatist. Reads The Greatist Blog every day.

greatist by arealperson8 May 14, 2011