A car specially modified and fitted with a powerful or rebuilt engine so as to be much faster than one of the same stock design; a-bomb, can, rod: Special Racing Cars and Hot Rods, a technical book explains the principlesofsupercharging,carburetion,suspension,shockabsorbers. A complete speed manual(1945+ Hot rodders)
(also hot rodder) A driver or devotee of hot rods: Right away he thinks he's a hot rod(1949+ Hot rodders)
The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D. Copyright (C) 2007 by HarperCollins Publishers. Cite This Source
Idioms and Phrases with hot-rod
An automobile modified to increase its speed and acceleration, as in Kids love to tinker with cars and try to convert them into hot rods.