The word "sucker" originally referred to fellatio which helps explain why a guy called this 50 years ago would get so mad. It's hard to believe someone would get angry at being called a "jerk" unless you know that the word is actually a reference to masturbating.
The words "sucks", "bites", and "blows" also originated as sexual insults (P.L.T.).
Here's the full article where I learned this info as well as an interesting passage from it:
"Over time, taboo words relinquish their literal meanings and retain only a coloring of emotion, and then just an ability to arouse attention. This explains why "Close the fucking door", "What the fuck?", "Holy Fuck!", and "Fuck you!" violate all rules of English syntax and semantics—they presumably replaced "Close the damned door", "What in Hell?", "Holy Mary!", and "Damn you!" when religious profanity lost its zing and new words had to be recruited to wake listeners up."