when a jovial older gentleman refuses to let the people around him buy drinks, often used to impress younger woman who are often just leading this older gentleman on in order to get free drinks themselves.
Pete Dick: "damn, is that Roberto over there?"
Sunny: "I think it is."
Pete Dick: "lets go buy him a drink, he's a good guy."
Roberto: "hey, fellas, wow good to see you."
Pete Dick: "let me buy you a drink..."
Roberto: "no, no, put your money away, its no good here, really."
Sunny: "wow, what a beautiful thing