Rat Fink[1] is one of several hot rod characters created by American artist Ed "Big Daddy" Roth, one of the originators of Kustom Kulture of automobile enthusiasts.

Rat Fink is usually portrayed as either green or gray, comically grotesque and depraved-looking with bulging, bloodshot eyes, an oversized mouth with sharp, narrow teeth, and wearing red overalls with the initials "R.F."

Rat Fink continues to be a popular item to this day in hot rod and Kustom Kulture circles in the form of T-shirts, key chains, wallets, toys, decals, etc.

[5] Jeannette Catsoulis reviewed in The New York Times: Ogling fins and drooling over fenders, the movie traces the colorful history of the hot rod from speed machine to babe magnet and, finally, museum piece and collector's item.

The song was featured in the film Beavis and Butthead Do America, along with an animated sequence reminiscent of Ed Roth's artistic style.