A combination of G and Yeah. Widely used by Gangster Rapper MC 8 of CMW(Comptons Most Wanted) since 1988... Gyeah!!!! - See definition for YEAH as well.
** Opening Lyrics to MC 8's song "Automatic" from the album "Section 8"


Hoo-bangin in the house c'mon
Eihthype in the house c'mon
And i'm representin
Real compton city g's on this one
My nigga Kay Neeze in the house
We gon set it off like this
by Tone-Loc May 31, 2007
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another way of saying "yes" when you're COOL, LAID BACK, OR HIGH. lol
"you wanna hit this blunt again?"


by suedemuffins June 02, 2005
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an expession said when something amazing, exciting, or overwhemlingly good has happened
friend: holy shit buddie we just found 3 boxes of beer!!
You: Gyeah!!!
by jessica weiss September 15, 2006
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A word used by gimps who think that they are being "original" or "funny" by using the shitty rip off version of "jyeah."
Faggot 1: "I just ate the whole apple pie"
Faggot 2: "GYEAH!"
by Jyeah Man July 06, 2011
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To gyeah someone is to find an ugly person or "gorm", be nice to them, and then suddenly start shouting "GYEAAAAAH" them along with some insults. This process is called gyeahing.
Gorm; iya owa u?

Gyeaher; Yeah, I'm fine thanks.

Gorm; wt ov u been up2??


by Lloyd Gabriel May 24, 2007
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