Cosby Sauce

Something you spray into a vehicle's intake in order to get it to start, usually starting fluid, but can also include brake clean.

"It won't fuckin' start, bud."
"Give 'er some Cosby Sauce, she'll run."

by Vermont Slang December 19, 2020

Cosby Sauce

Cosby Sauce is another term for starting fluid. It was coined by Canadian YouTube by the name Zip Ties N Bias Plies.

This 7.3 Powerstroke needs a snort of Cosby Sauce.

by Whopper plopper85 duecshen December 30, 2025