jake brake
English edit
Alternative forms edit
Etymology edit
From JakeBrake, an abbreviation for the Jacobs brand name of engine braking systems.
Pronunciation edit
Audio (AU): (file)
Noun edit
jake brake (plural jake brakes)
- (slang) Especially on trucks, an engine compression release braking system that opens the exhaust valves in each cylinder near the top of their compression strokes in order to slow the vehicle; an engine retarder.