blow horn

A blow horn was handed to Garraway, who began to speak about racist policing in Minneapolis.

Jones spoke with one police representative as another organizer, Diallo Payne, ridiculed the officers over a blow horn.

A bullet to the head...it goes straight through and turns into some kind of blow horn for your memories.

At a recent Wichita rally supporting transgender rights, a couple of hecklers wearing masks used a blow horn to try to drown out event speakers.

Some demonstrators, including a church minister using a blow horn, urged crowds to calm down.