Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun slang Especially on
trucks , anengine compression brake that closes the valves in an engine in order to slow the vehicle; anengine retarder .
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
From JakeBrakeTM brand compression brakes. Though a brand name, this term is often used to refer to the device in general.
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