Noun

1. Sensational or clamorous advertising or publicity.
2. Noisy shouting or uproar.
3. An inshore, surface-dwelling species of needlefish forming sizeable schools. Feeds mainly on sea grasses and small fishes. Mainly used as bait for offshore game fishes such as sailfishes and marlins; utilized as a food fish in the West Indies.

Verb

1. To sensationalise or make grand claims.
   • 1933 — Franklin D. Roosevelt, Fireside Chat (7 May)

     Industry has picked up, railroads are carrying more freight, farm prices are better, but I am not going to indulge in issuing proclamations of over-enthusiastic assurance. We cannot ballyhoo ourselves back to prosperity.