A short high-pitched humming sound, such as that made by a bullet or vibrating string.

(slang) A witty insult or derogatory remark.

(uncountable) Zest or vitality.

(uncountable, slang) Pleasant or exciting flavour of food.

(intransitive) To move very quickly, especially while making a high-pitched hum.

(transitive, slang) To address a witty insult or comeback to.

(onomatopoeia) A high pitched humming sound.

(US, slang) Used to acknowledge a witty comeback, a zinger.