gag-factor
A scale from 1 to 10 that tells how gross something is. If it’s 10, you’ll probably puke, pass out, or yell at the person who made it.
This pizza has a gag-factor of 10 and I threw up.
My ex gave me a 9 and I never spoke to her again.
My dog’s butt has a gag-factor of 7 and I walked out.