An acronym commonly used on the Internet which means "Go Suck A Dick."

Derives from an America Online Member. The term can also be used with the term "You Got Served."
Omfg, GSAD. You got served.

Ha! You think you owned me? GSAD.
by Jesus H. Christ May 18, 2004
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Stands for "Go Suck A Dick" used as an alteranative to "go fuck yourself" *the word GSAD is to be used in texts, say the full term when actually speaking to someone
You: *posts a picture*
Douchebag: ew your so ugly
You: GSAD
by tea cow January 28, 2017
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