"Hey, that plant there is kind of shaped like my balls," is something that you're really not allowed to say in polite society. It wasn't always that way, though.
As it turns out, many of the words you use every day were invented by people who had wieners, balls and asses on the brain. Yes, we're serious. For example:
What It Means Now:
An over emotional reaction, chaos, a Def Leppard album.
The Dirty History:
The term comes from the Greek "Hystera," which means womb or ovary, which also gives us the term hysterectomy. Modern examples of hysteria are mostly riot related, but back in the Victorian era, it was considered a nervous condition for females, caused by their lady-parts. Which, like riots, was stopped with fucking fire hoses.
That image shows the so-called "water massage" that was used to treat the condition. For women who didn't like being shot in the crotch with a jet of high-pressure water, the doctor could use his fingers to create the same mysterious effect, which they referred to as "hysterical paroxysm" before someone explained to them what an orgasm was.