A tourist from the counterweight continent of Discworld to the dual city of Ankh-Morpork at the very start of the Discworld series who gets into all sorts of crazy adventures with his hired guide Rincewind the not-very-good wizard. Twoflower is also accompanied by The Luggage, a chest made of sapient pearwood, which walks along behind him on its own legs (lots of them).

Likely the inspiration for NetHack's tourist character class.