cleans up good

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

17👍 3👎

Theory of Offsetting Mistakes

This theory recognizes that humans are not perfect and that for every mistake in a model or schedule
there will be another "mistake" in somewhat equal scope to offset each other, hence rendering the model or budget still valid.
The idea behind is that things will anyway fall the way they fall and we cannot control for that.
The optimistic view is that this theory rejects Murphy's Law, the negligent take on it is the "Trust me, it will be OK" approach to life.
Decide where you want to be.

Accountant 1: oh, crap... we forgot to add $1 million in income from product X sales to the budget
Accountant 2: oh, fudge... product Y's revenue is inflated by $980K...oh wait... based on the Theory of Offsetting Mistakes all is well, the numbers we gave the CEO are still valid, yay.

Girl: oh, crap... your condom broke
Dude: oh, fudge... you miscounted your days, your period is due today at 8pm.... you are not pregnant, yay.