一いっ周しゅう回まわって

expression

when you really think about it; all things considered; in the end

Used to introduce a conclusion reached after considering various factors or after a long process; often implies that the result is somewhat ironic or contrary to initial expectations.

• 一いっ周しゅう回まわって、やっぱりシンプルなデザインが一いち番ばんいいと思おもう。

  When you really think about it, I think simple designs are the best after all.

expression

back in style; once again fashionable

Describes something that was once popular, went out of fashion, and has now become trendy again; often used for fashion, music, or retro items.

• 90年ねん代だいのファッションが一いっ周しゅう回まわってまた流行はやっている。