uh

informal Yes; yeah. A written representation of a typically verbal utterance. A: "Are you coming to the party tonight?" B: "Uh-huh. See you there!" Uh-huh, I'll take a slice of pizza.

informal No; nah. A written representation of a typically verbal utterance. A: "Are you coming to the party tonight?" B: "Uh-uh. Too much homework." You want a snack this close to dinnertime? Uh-uh.