noun
plural throttles
[count] technical :a device that controls the flow of fuel to an engine
at full throttle
as fast as possible
verb
throttles; throttled; throttling
[+ obj] to choke or strangle (someone)
US informal :to defeat (someone or something) easily or completely
to not allow (something) to grow or develop
throttle back
[phrasal verb]
throttle back or throttle back (something) or throttle (something) back :to reduce the amount of fuel flowing to an engine by adjusting the throttle