k-scale
A scale that measures how good or bad sex is. 10 is the best. 0 is like getting a sandwich from a homeless guy. Anything worse than that is so bad it makes you want to scream and throw up.
He gave me a -1. I think I was born in a jail cell.
I got a -6. I’d rather have been stuck in a blender with a monkey.
She gave me a -8. I think I was born in a sewer.