(idiomatic expression) To express denial, to refuse a proposal. Same as "I don't even think about it" or "Fuck you, I won't do it!".

Got the covid-19 vaccine

A sarcastic way of responding to - or interrupting – someone who is busy telling you about their master plan and all the unrealistically fantastic things they think will happen to them. By using this expression you are suggesting the only place their desired outcome is likely to happen is in their dreams.

What you think and what she feels are two different things.

used to refer to something that is desired by the speaker or the person spoken to but is unlikely to happen