When someone is exhibiting a period of focus and contentment largely because they have had recent-enough sexual release / orgasm. It is the antithesis of the slang "down bad", and is not to be confused with the phrase "post-nut clarity" (which is more descriptive of the immediate onset of awareness and objective thinking upon finishing climaxing).
"Hey you tryna godancing with us tonight?"
"Nah man I've been up good since yesterday and I'ma keep working on my thesis til it wears off".
Usually refers to men. Especially men who don't pay much attention to their looks, in terms of grooming, hair and clothes.
However when they put some attention to it they look good.
Best example is Shaggy from Scooby-Doo. He always looks frumpy, stained, unshaven, slump, but you always
get the feeling that when he needs to escort Daphne Blake to her gf wedding Shaggy after a shave and a nice getup will look good.
Girl 1: Are you crazy you want me to go out with Jonah Hill, yuck Girl 2: Sweety, he cleans up good and will make you look great on that red carpet
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.