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1.
HGY
Acronym for "Hairston Go Ya" refering to Scott Hairston of the San Diego Padres.

You say HGY when Scott Hairston is about to or has hit a bomb.
Matt Vasgersian: Hairston hits a shot to Right Field and it is................GONE!!! GOOD NIGHT NOW!
Mark Grant: HGY!
Flavor Flav: WOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOW
by Sasquatchio April 16, 2008
 
2.
hgy
stands for "Hoh god yes!"
x: I just won the game!

y: HGY!!
by bchhphwqiq9 June 16, 2010