bad taste in one's mouth

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Refers to the feeling of nausea or its aftereffects.


bad taste in one's mouth (plural bad tastes in one's mouth)

  1. (idiomatic) A feeling something is morally despicable as to cause nausea.
    The more I thought of my orders, the more it left a bad taste in my mouth.
  2. (idiomatic) A feeling of guilt, responsibility, or embarrassment as to cause nausea.
    Knowing that I had inadvertently aided a killer, left me with a bad taste in my mouth.
  3. (idiomatic) A feeling of disappointment and frustration.


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