a polite apology used when interrupting someone or for having caused a disturbance

打扰了，请问王经理在办公室吗？

a polite expression used to announce one's departure, implying one should stop occupying the listener's time

时间不早了，那我就不打扰了，您先忙。

a facetious internet slang used to abruptly end a conversation when the other person is being weird or insufferable

看到你的这种逻辑，打扰了，我这就消失。