horn in

At one point, the besieged Waymos began honking their horns in coordinated cacophony, punctuated by the chants of protesters and the whirring of police helicopters overhead.

"We want our steel back!" chants the crowd, as passing motorists toot their horns in support.

He went to banner waving events on busy road bridges where the group would visibly demonstrate against controversial local issues, encouraging drivers to honk horns in support.

They stand for hours in the biting cold, lining one of the main streets of the capital, as passing motorists honk their horns in a deafening cacophony of solidarity.

There’s desperation in the air, as Dodgers fans blare car horns in futile attempts to get traffic moving.