The 13thletter in the alphabet OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
Literally, it's one stupid letter why are you looking this up? Did you think there was gonna be some sexual reference with a bunch of curse words for something so simple? It's just O