The acroynm for the term, smug bastard. Often used to describe a person who is highly sure of themselves. Can be used in a conversation when someone is being a snob-like douche hole.
Sugar Baby. Sugar baby is usually a female (but could be any gender really) that receives gift, money, and more from someone (usually an older man) typically in exchange for something (usually sex)
My best friend: *Starts running away*
Me: oh no you don't!
My best friend: Oh yes I do!
Me: get back here you sb!
My best friend: what does that mean?
Me: you stupid bitch!
My best friend: Okay good!
Me: Why good?
My best friend: you are now the sb for telling me haha!
Me: Oh why you little sb I will so be getting you back for this one!