paper backing

to smack one's behind with a soft cover college textbook while they are on all fours

Billy: "Sarah's so kinky man, she's into paper backing"
Josh: "Which textbook did you use?"
Billy: "The calculus one, man"
Josh: "Hot"

Paper Champ

Someone who only wrestles 11 times a year, and can only win matches with interference. Roman Reigns is a paper champion

Roman Reigns is a paper champion who barely wrestles 11 times a year, while he claims to be the head of the table and the tribal chief. He avoids facing the true contenders who work hard and deserve a shot at his title.

bread paper

also known as a tortilla

ill have the carne asada burrito in flour bread paper please