What is Fapkin?
1.
The tool in which the fapper, horney gentleman that he is, must collect, with indefatigable glee, the ultimate discharged substance of the fapping action, heretofore described as the big F.
When used properly, the said fapper is not required to constantly refill stock quantity of the Kleenex frequently, when the practical fapper can use one (or up to 3) different Fapkins to serve the same function.
A wise fapper indeed.
Ron ran out of Kleenex so he used his little sister's Barney doll as a fapkin to clean up his spizzy spunk.
2.
A tissue/napkin that you cum in. Usually left laying on the floor of your bomb devastated room.
Adam: *blows nose with tissue he finds on the desk* GOD DAMN MAL! WAS THIS A FAPKIN!?
Mal: Heh..
See