構かまうものか

expression

who cares?; I don't care; what does it matter?

A strong, dismissive rhetorical question expressing that the speaker does not care at all. Often used in casual or rough speech.

• あんな奴やつの言いうことなんて構かまうものか。

  Who cares what a guy like that says?

• 失しっ敗ぱいしたって構かまうものか。またやればいい。

  What does it matter if I failed? I can just try again.