A compression release engine brake, frequently called a Jake brake or Jacobs brake, is an engine braking mechanism installed on some diesel engines. When activated, it opens exhaust valves in the cylinders, releasing the compressed air trapped in the cylinders, and slowing the vehicle.
Although Jake brake properly refers to the Jacobs brand of engine brakes, the term has become a genericized trademark and is often used to refer to engine brakes or compression release engine brakes in general, especially on large vehicles or heavy equipment.
They are often not allowed in to be used in towns as they create loud, clattering noises.
Although Jake brake properly refers to the Jacobs brand of engine brakes, the term has become a genericized trademark and is often used to refer to engine brakes or compression release engine brakes in general, especially on large vehicles or heavy equipment.
They are often not allowed in to be used in towns as they create loud, clattering noises.
I saw a semi get pulled over because he pulled his Jake Brake in city limits trying to slow the rig down in a slower speed zone.
by Pele Lucciano October 18, 2010
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brake check
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The act of hitting the brake pedal lightly so that the brake lights come on although there's no brake action.
Usually used to get tailgaters to chill out.
Usually used to get tailgaters to chill out.
That asshole was tailgating me so I gave him a soft brake check to get him to stop being an impatient idiot and let me finish my overtake.
by Dumonster June 24, 2014
Get the Soft Brake Check mug.the process by which one gases their car and then brakes fairly hard to cause the car to bounce almost as if it had hydrolics.
It was originized by Mac Dre and is frequently used by bay area rappers
It was originized by Mac Dre and is frequently used by bay area rappers
by nicktomyskins April 26, 2006
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Get the Hand-brake skid mug.Euphemism for "to take a dump".
I was initially only going to be gone for a minute, but once I was in the bathroom I realized I needed to put the parking brake up.
by birdlaunch7 April 5, 2009
Get the put the parking brake up mug.Refers to the non-existent brake on the passenger side of the car. Often used by mothers with new drivers even when they are driving just fine. often used in conjunction with the oh shit handle.
Michelle started pressing on the invisible brake as soon as her son got in the car, of course, this had no effect on his driving.
by dee_gee March 26, 2009
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