A man's balls.

Adj. Something that is expected to have a long lifespan by virtue of having existed for a long time, based on the lindy effect, named for the New York restaurant Lindy's, coined by Albert Goldman and popularized by Nassim Taleb.

Someone who is easy to set off or have very low amounts of patience. You could say something meant as a compliment and they'll flip out regardless.

Those who participate in formal testing.

A slang nickname for an individual who has more than 2 testicles

A test-taker, or one who prefers tests to projects

The term was popularized by Mrs. Katherine Buron of Leicester, Massachusetts

Jumps more than a pornstar on a cock