| Comment | It's basically a more aggressive way of saying shut up, but it's not as formal as saying the full shut the fuck up - If I said shut up (especially with emphasis on the word shut) I'd be disagreeing with you in a friendly way, if I said fuck up I'd be warning you that I don't like what you say, and if I told you shut the fuck up that'd be saying 'you seriously need to stop talking right now' with implied threat whether from the person you're speaking to or other people who could overhear |
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