a bad taste in (one's)/the mouth

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a bad taste in (one's)/the mouth

A negative impression (based on something that has already happened). I don't know, man, the fact that he lied to you just leaves a bad taste in my mouth.
See also: bad, mouth, taste
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

a bad (or bitter or nasty) taste in the (or someone's) mouth

a strong feeling of distress or disgust following an experience. informal
See also: bad, mouth, taste
Farlex Partner Idioms Dictionary © Farlex 2017
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