Also Known As ...
"What the hell does he know about dancing anyway?" and "No one asked for your opinion."
What I've found is that we never use these phrases when compliments are involved. You only hear it when someone is saying something insulting or disagreeable. "He said my painting sucked? Fuck him. I don't care about what he thinks." But you never hear someone say "He thinks my painting is great? Well, he can just suck my dick. When he can paint something of equal quality, he can tell me my work is good."
This situation occurs when someone attempts to supply criticism or feedback on us or something we've worked on, and we shut them down by dismissing their opinions. Your boss tells you that your fries are too salty and that you need to cut back on your swearing in front of the customers. You bite your lip until he leaves and then mumble to yourself, "Bullshit. How the hell would that cock know? He just sits on his ass in that office all day. Who gives a shit what he has to say? I'll slit his fucking throat and bathe in his essence." Then you look up to see three of your co-workers caught in mid "fight or flight" mode.
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"If you don't turn your eyes in the other direction, you're going to make the decision for me."
But you find this everywhere, not just at work. Your spouse didn't like the meal you made, so you tell him, "I don't ever see you cooking, so I'm not really concerned with whether you liked it or not. You can make your own next time." Or a friend makes fun of your pile of shit car, and you respond with "Tell you what, you get your own car, and then you can give me shit about mine. At least I have one."