糞くそ落おち着つき

noun

provokingly calm; annoyingly composed

Used to describe someone who remains irritatingly calm in a situation where agitation would be expected, often with a negative or sarcastic tone.

• あいつ、怒おこられる場ば面めんでも糞くそ落おち着つきでムカつく。

  That guy is so annoyingly calm even when he's being scolded, it pisses me off.

• 彼かの女じょの糞くそ落おち着つきには感かん心しんするを通とおり越こして腹はらが立たつ。

  Her provokingly calm demeanor goes beyond admiration and just makes me angry.