Top Definition
When flavors compete for dominance in your mouth, resulting in an awkward taste that is not pleasant.
So, I ate sushi, then a cookie. Raw fish and chocolate chips do not go well together. Mouth fight.
Me: So, I just brushed my teeth.
My wife: Here, have some orange juice.
Me: (gulp) Eww!
My wife: Nobody wins in a mouth fight.
by Michael Grant August 11, 2011
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