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.\n> ** Opening Lyrics to MC 8's song "Automatic" from the album "Section 8"\n> (intro)\n> "Gyeah"\n> Hoo-bangin in the house c'mon\n> "Gyeah"\n> Eihthype in the house c'mon\n> "Gyeah"\n> And i'm representin\n> Real compton city g's on this one\n> My nigga Kay Neeze in the house\n> We gon set it off like this\n