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 fucking doggy 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 page turner."