yea-ah! Share definition Flag Another term for yeah, but spoken in the style of Metallica frontman James Hetfield. James: "Oh yeah??" Crowd: "Yeah!!" James: "Oh yeah??" Crowd: "Yeah!!" James: "YEA-AH!" yea-ah! by Wit Jr May 13, 2005 0 0 Get merch Get the yea-ah! mug. Buy Now — $32.95 See more merch