Can mean one of two things depending on the context in which you use the word.

1. A burnout

2. When a guy/girl is "wheeling" a guy/girl
1. Sitting in your friend's new car: "dude theres people watchin mang lets fuckin roast em"

2. guy walks by his friend wheelin this chick: "rooooasst em!"
(usually said while one is spinning his/her finger in a circulatory fashion)
by BUTTONMASHER411 January 12, 2011
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When someone is driving a vehicle and stops and spins the tires posi locked so both of the tires burnout until they blow.
Oh sure buzz roast em off
by Trucker69 October 24, 2017
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