noun: A timing belt, or cam belt (informal usage), is a part of an internal combustion engine that controls the timing of the engine's valves. The belt itself is one of man's most painstaking automotive repairs as it requires 5-8 hours to replace. A timing belt repair is one of the most unsatisfactory jobs because it does not show any sign of improvement after replacing. A common timing belt repair is $700 dollars at a mechanic and almost $1,000 at a dealership. A poor functioning timing belt can also be an excuse to hang with friends.
Boy 1: "Yo dude can you chill this weekend?"

Boy 2:"Nah man I gotta change the timing belt in the truck."

Boy 1:"Alright I guess Ill talk to you later."
by Tbelt March 24, 2011
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A popular phrase that fans of The Mark Side use to describe the event where the character Boss abuses the character Mark.
"Remember that time in TMS where Boss gave Mark belt time?"
by beltfather November 24, 2019
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