jeppi

Etymology
Generally believed to be from the term, which was used to refer to sturdy vehicles of the American Army during WWII.

First recorded usage referring to a car is from the play Leynimelur 13 from 1943.

Noun

 * 1) a jeep, an SUV
 * 2)  a showoff, someone obstreperous
 * 3)  a rookie on a fishing trawler