throttles

A valve that regulates the supply of fuel-air mixture to an internal combustion engine and thus controls its speed; a similar valve that controls the air supply to an engine.

The lever or pedal that controls this valve.

The windpipe or trachea.

To cut back on the speed of (an engine, person, organization, network connection, etc.).

To strangle or choke someone.

To have the throat obstructed so as to be in danger of suffocation; to choke; to suffocate.

To breathe hard, as when nearly suffocated.

To utter with breaks and interruption, in the manner of a person half suffocated.