流りゅう行こう遅おくれ

na-adjective, noun which may take the genitive case particle 'no'

out of fashion; outdated; behind the times

Describes something that is no longer trendy or current, often used for clothing, ideas, or technology.

• その服ふくはもう流りゅう行こう遅おくれだ。

  Those clothes are already out of fashion.

• 彼かれの考かんがえ方かたは流りゅう行こう遅おくれだと思おもう。

  I think his way of thinking is outdated.