"yay" in German Yay! Juchhu! Juhu! Hurra! Detailed translations for "yay" Yay! Yay!(also: Yahoo!, Woo-hoo!, Whoo-hoo!) Juchhu! Yay!(also: Yahoo!, Woo-hoo!, Whoo-hoo!) Juhu! Yay!(also: Hurrah!, Hooray!, Yippee!, rah!) Hurra!{interjection}