How much a girl's ass jiggles when you slap it. If a girl has a nice ass and it is not stiff it will jiggle a lot compared to a girl who has a small ass which is stiff.
Man, did you see the ass on that girl? I bet she has a pretty highjiggle factor
When your desk is wobbling to much during your class and causing problems for classmates. The Jiggle Factor of an object is how much the object wiggles and wobbles during intense periods of concentration.
"My desk had a JiggleFactor last class it was pissing me off"
"Lets measure it"
"I don't know how "
A man who dates women with the sole purpose of exploiting their time, energy, and labor while he sucks the joy and happiness from their lives.
"That guy's a soul digger. He'll expect you to work full time, but you'll be doing all the cooking, cleaning, laundry, shopping, and childcare while he plays video games or watches TV."
A person pretending to be something they aren't, or an impostor. This is inferred because of the old alien movies where alien pods appear on earth and the "pod people" dispose of the humans and slowly reproduce the bodies, pretending to be humans.
The pod person was pretending to be my father, but I knew that he was an alien when he acted differently than my father ever would have.