The saliva that comes out of your mouth when you feel like you are about to throw up.

Something that tastes so juicy.
Oh my god I have mouthwater, uhhh.

Oh its so good it tastes like mouthwater.
by joel g August 15, 2008
Top Definition
Otherwise known as "spit".
Alison: "Ew! You just got your mouth water on me!"
Caroline: "Oops, sorry."
by Am0o0ney April 25, 2009

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