Jerk IS a slang term. It means a person who doesn't care about anyone and is rude or mean to everyone. I can't find any specific slang from 1950 that means the same thing.
Jerk Off/Handjob Jerk Off/Handjob
In slang terms, "tool" is often used to describe a person who is being used or manipulated by others. It can also refer to someone who is seen as foolish or easily taken advantage of by others.
That is the correct spelling of "jerk" (to pull or yank, or slang for a rude or boorish person).
Yenta, someone who meddles in others affairs Putz, jerk Gonif, jerk
Some teenage slang from the 1950s included phrases like "cool it," "cruisin' for a bruisin'," "pad," "threads," and "hot rod." These terms were often used by young people to express approval, warn of potential trouble, refer to a hangout spot, describe clothing, or talk about a fast car.
To jerk around with someone means to tease or play pranks on them in a playful or light-hearted manner. It can also imply leading someone on or messing with their emotions in a less sincere or respectful way.
Slang words are words that are not in the dictionary.
Jerk, erk, er, re
A Yank tank is Australian slang for an extravagent American car, or United States slang to a pre-1950s American car in Cuba.
slang
A meanie, a mean person, someone you don't like because of their unpleasant personality.
Derby slang words are words that are used in the Derbyshire dialect. Some Derby slang words include "be said" and "belter" along with "clammed."