To crumple, crush or wad (like a piece of paper).
To strangle or choke someone.
To utter with breaks and interruption, in the manner of a person half suffocated.
To have the throat obstructed so as to be in danger of suffocation; to choke; to suffocate.
To control or adjust the speed of (an engine).
To breathe hard, as when nearly suffocated.
To cut back on the speed of (an engine, person, organization, network connection, etc.).
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.