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A race taking place on a freeway or possibly any paved surface with 2 or more cars, where all contestants are to hold their speed at exactly 40 mph and at the end of the third honk accelerate to 140 mph at minimum.

Similar to 20, 30, 35, 50 and 60 rolls, all of such races have the standard of 100mph between start and end speeds.

Obviously the person in front wins if they complete the gap first, they stay out in front until all participants mutually shut cars down or all other participants let off early.
Jon wants to 40 roll you for twenty dollars in his Camaro, don't worry its stock bottom end.
by Steve______ June 09, 2012
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