air horn

or airhorn

noun

1. a horn activated by compressed air.

Example Sentences

By tipoff, an agitated rumble filled the arena, punctuated by air horns and the aforementioned singing.

From Los Angeles Times

For the swimsuit portion of the Miss Argentina contest, Rodríguez chose a modest one-piece suit with a shawl draped over her shoulders, giving the crowd a shimmy as fans whooped and blew air horns.

From Seattle Times

The group of protesters located a few streets down the hill from the park’s outer wall could be heard beating drums, blowing air horns and setting off firecrackers before the show kicked off.

From Seattle Times

Loud, annoying rock songs, gunshots and air horns crowd up nearly every moment.

From New York Times

Calls for an immediate election rose above a din of air horns.

From New York Times