1. A huge, gaping maw of a vagina with not only inner and outer labia, but several folds of skin in between said labial regions, resembling a cabbage; quite possibly smells like old rancid cabbage as well.
2. Non-sensical term coined by South Park's episode called "It's a Jersey thing". Mostly uttered in anger.
Angry hair dresser: That whore is gah-bage! That muff cabbage thinks she's hot shit, but she's just nothing, she's just a cabbage!!
Innocent bystander: What the fuck is muff cabbage?!
12 step recovery jargon referring to someone new who talks about how great life is, now that they're sober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.