Short for Jeans from Hell, any jeans that cause perpetual discomfort while wearing them. Can refer to jeans which are too large, too small, or jeans that are notably out of style.
The only clean pants I had for last night were my JFHs, so you know that date went reaaally well
My JFH give me a jeanus but i've had them so long I can't bring myself to trash them.
I know Lisa thinks those are hot on her, but those are her JFHs, and give her a muffintop.