Foul, unpleasant, and gooey. He fell into the pond and came out covered in stinking mungy filth. I could never stomach the mungy glop they served in the school cafeteria.
1. mod. gloppy; messy. The spaghetti was cold and mungy by the time it was served.
2. mod. having to do with an oily feeling of the face of a person who has taken LSD. (Drugs.) I feel so mungy after I take the stuff. Yuck!