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1.
Go Die In A Hole -

An expression of hate less potent than GDIAF.
Sally: I hate you. GDIAH
You: Wtf.
by Jessanatrix February 26, 2009
 
2.
Ancronym of Go die in a hole.
Brian: Hey bro, Im way better than you.
John: GDIAH.
by AtomicDJ December 21, 2012