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An extreme breakout of cold sores/fever blisters around the oral cavity. Can extend to the nose, chin and cheeks in severe cases.
Dude, she looks clean now, but last month she had a rough case of swamp mouth. Yeesh.
by Igger Ook November 08, 2005
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2
The state of one's mouth (and breath) after eating ass.
I love her and all, but she wanted to try out some anal stuff on me, and when we kissed afterwards she had some serious swamp mouth...
by EZonTHEkush July 21, 2016
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