mud eye
The asshole.
Want to see my mud eye wink?
mud in the eye
when you've had a poo and not wiped your bum properly resulting in an annoying itch.
"I've got an itchy arse, must still have some mud in the eye"
eye mud
The result of mixing speed tears and dust. Occurs most often while riding four wheeler or the like on a dusty trail, without wearing goggles.
It took several hours for all the eye mud to purge from my tear ducts.