The cloth that you use to wipe up the semen after masturbating, the name comes from the cloth becoming stiff like leather from all of the use that it gets.
Person one: Hey Joey! I need to get a new fap leather.
Person two: yeah me to mine feels more like a brick than a cloth.
Person two: yeah me to mine feels more like a brick than a cloth.
by MrMaclroy July 18, 2018