〜じゃん

Stresses something the listener already knows or should know, or invites agreement. Originally Kantō speech, now common among young people everywhere. Avoid in formal situations.

• これ、めっちゃ可愛いじゃん。

  これ、めっちゃかわいいじゃん。

  This is super cute, right?

• 言ったじゃん。

  いったじゃん。

  I told you already!