Meaning someone who is really sweet and/or cute.
Used in place of terms such as sweetie, cutie, honey, babe, baby, dear or darling.
A pet name for someone as a term of endearment.
Girl: Well, I'll talk to you later darling. Love you!
Guy: Alright, night Kush!
Girl: Not going to say it back?
Guy: Sweet Dreams Kush!