Top Definition
The act of performing oral sex on someone while you are afflicted with a cold or upper respiratory ailment, causing a snorting sound similar to that made by a moose, horse, deer, etc.
So she decided to go down on me last night even though she had a sinus infection. I told her it was a bad idea but next thing I know there she is Moose Munching me.
by julio montoya December 22, 2011
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