Top Definition
Automotive/racing term. Denotes a vehicle running/racing WITHOUT nitrous oxide assistance.
Synonym: "On nuts".
Antonyms: "On the bottle", "On spray", "Juicing it", "With NOS".
"That car runs the quartermile in 10.1 seconds on the motor; but it does 8.9 on spray".
by Dr. DVS December 22, 2007

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