you're a plum
When someone is cute and petite, but plain like a bagel at times. A person who is usually plum is very sweet and round.
Person A: "why can't you be cute like that man.."
Person B: "Cute like what??"
Person A: "Like her, she's adorable. And you're a plum."
Person B: "Cute like what??"
Person A: "Like her, she's adorable. And you're a plum."