屁へ理り屈くつ屋や

noun

sophist; quibbler; person who argues with twisted logic

A derogatory term for someone who persistently uses far-fetched or hair-splitting arguments to avoid admitting they are wrong. Often implies stubbornness and a love of argument for its own sake.

• 彼かれは屁へ理り屈くつ屋やで、何なにを言いっても言いい負まかそうとする。

  He's a quibbler who tries to argue you down no matter what you say.

• あの屁へ理り屈くつ屋やと議ぎ論ろんしても時じ間かんの無む駄だだ。

  Arguing with that sophist is a waste of time.