What is buffet-style?

Spending time sampling all areas of a person rather than just one.

John's wife was delighted he decided to go full buffet-style on her rather than just plain old cunnilingus

buffet-style - meme gif

When you do her from behind, wrapping her legs around your waist like a belt, while she clings to her walker like motorcycle handlebars.

While you were at the movies I was really given it your Grandma Country Kitchen Buffet Style.