(adj., male) Generically attractive. The type of boy you might find roaming around the mall with a group of friends who all have the same haircut and similar clothing. Also can be used as a noun: mall cutie.
Girl 1: Our waiter is so cute.
Girl 2: Eh, he's just mall cute. There's nothing that special about him.
Adjective meaning "so-so" or "middling."
Based on the Johari Window, a personality-measuring technique created by Joseph Luft and Harry Ingham, and the Nohari window, a negative spin popularized in an online quiz created by Kevan Davis circa 2006. "Hari" is the mid-point between johari and nohari.