Zabbaleen
The Zabbaleen ( ', ) is a word which literally means "garbage people" in Egyptian Arabic. The contemporary use of the word in Egyptian Arabic is to mean "garbage collectors". In cultural contexts, the word refers to teenagers and adults who have served as Cairo's informal garbage collectors since approximately the 1940s. The Zabbaleen (singular: ', ) are also known as Zarraba (singular: Zarrab), which means "pig-pen operators." The word ' came from the Egyptian Arabic word ' (, ) which means "garbage".
Tabal
Tabal and its people are often identified with the tribe of the Tibareni ("Tibarenoi" in Greek, "Thobeles" in Josephus) who lived near the Black Sea. They are mentioned in the works of Hecataeus of Miletus, Herodotus, Xenophon and Strabo. 
On this ground, the Georgian historian Ivane Javakhishvili (1950) considered Tabal, Tubal, Jabal and Jubal to be an early Kartvelian tribal designation. Whether there is really any connection between the Tibareni of the Black Sea coast and the Tabal kingdom of Southern Anatolia is uncertain, ancient authors may have already confused the two.