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1.
an expression the speaker says to the listener to encourage the listener to be extravagant, to go all the way, and do whatever you are doing to its fullest - and not flake out.

it can be abbreviated: gbgh!
You gotta go big or go home!

I can't wait to GBGH with y'all this weekend!
by signe c. October 29, 2006
 
2.
A phrase describing a Champion's lifestyle. A way of life. An attitude.
We never go home.
A champion will live by this code, "Go big or go home".
by H Dub April 03, 2007
 
3.
Your teas ready!!!!
go big or go home
by BobMarley1234567891011121314 September 28, 2010
 
4.
1. (adverbial phrase): The act in where one party member refuses to engage in sexual intercourse due the size of male genitalia pertaining the anticipated partner and/or partners.
(asian male): I am going to remove my pants.
<removes pants>
(black female) in her head: go big or go home
(black female): I forgot....I have scabies.
by hermithtml May 04, 2011