The act of using a hollow book with a hole in the spine to give a descrete hand job.
typically for use in a library or other places with a high density of books
Guy 1: Yo dude, Sarah gave me a page turner in the mobile library yesterday.
An action preformed while fuckingdoggy style.
While pumping the girls ass, the guy licks his thumb as if to turn the page of a novel but instead inserts it in the girls ass.
"Dude last night i was totally doing Travis's mom from behind and i gave her the old pageturner."