The perspiration of a moustache which is caught by the tounge and swallowed.
Geraldo Rivea survived on moustache water in the Iraqi desert.
by rob April 4, 2003
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I invented this word over a year ago. But to me, it has already existed for quite a long time, even before I was born. The thing existed but the word didn't. Well it just did.

Basically, it's just sweat that forms on your upper lip. Or maybe even on your lower lip. I first thought about this when I was eating atva friend's house. Her sister cooked something spicy and while eating it, sweat formed on my upper and then that was when the term, "water moustache" was born. You're welcome.

S. L
John: *slurps noodles* Man, I can't do this anymore. It's too hot.
Jim: Yeah, maybe you should stop. You're starting to get a water moustache there.
by Sai Lomochi December 2, 2018
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