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Mouth off

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LampPro Tip 1/3
Informal UsagePlay
Used in casual settings among friends, but can be disrespectful in formal situations. SlideHe had no right to mouth off at the party like that.
LampPro Tip 2/3
Negative EmotionPlay
Often shows the speaker is annoyed or has strong negative feelings. SlideStop mouthing off about the new policy; nobody likes it.
LampPro Tip 3/3
Avoid in ProfessionalismPlay
Not recommended in workplaces or professional environments as it's seen as unprofessional. SlideMouthing off to the boss could cost you your job.