Dirf, son of Dorf was a male Ferengi, and one of the most popular comedians on Ferenginar during the Golden Age of Silly Bwah-hah-hahs. Dirf most famous for his comedic character Shlork the Stuttering Vulcan, and his catchphrase, "It's n-n-not log-g-gical!" During his career, Dirf maintained a long-running rivalry with Gormie Gormatop, which was so intense that the two would refuse to perform in cities the other had visited.