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1.
GHT
GHT or Gay Hand Touch, refers to the phenomenon when two or more straight men are walking side by side and for a short moment their hands accidently brush eachothers. In which case the person first to notice declares "GHT" and punches the other in the arm. The few rules of GHT are as follows:
i) The touching must be below the elbow to warrant the beating
ii) GHT holds no relevence in bars or clubs
Common examples of the GHT include:
a) Driver and shotgun both reaching to change radio station
b) Walking through a busy mall
c) Reaching for the last skittle
by steveebaby July 28, 2009
 
2.
GHT
Gotta Have That in texting
SMS from girl #1: MnS knickers on sale
SMS from girl #2: GHT!
by amiss August 18, 2010
 
3.
GHT
GHT is the pain or lump on the tip of one's strumming hand thumb caused by playing too much Guitar Hero or bursts of Heroing at an extremely high level.

Also known as Hero thumb or GH thumb.
"Hey, man what's goi-- WHOA! What happened to your thumb, man? There's a huge mark on it!"

"I know, I was playing Through the Fire and Flames on expert last night and I got a bad case of the GHT."
by Brian Gregory Holmes December 29, 2007