old hat
US /oʊld hæt/
UK /əʊld hæt/
慣用句
時代遅れ, 古臭い, 陳腐な
something that is old-fashioned, out of date, or no longer interesting because it has been done or seen many times before
例:
•
That kind of technology is old hat now; everyone uses smartphones.
その種の技術は今や時代遅れだ。誰もがスマートフォンを使っている。
•
His jokes are a bit old hat, but he still makes people laugh.
彼のジョークは少し古臭いが、それでも人々を笑わせる。