The Zabbaleen (Egyptian Arabic: زبالين‎ Zabbalīn, IPA: [zæbbæˈliːn]) 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: زبال Zabbāl, [zæbˈbæːl]) are also known as Zarraba (singular: Zarrab), which means "pig-pen operators." The word Zabbalīn came from the Egyptian Arabic word zebāla ([zeˈbæːlæ], زبالة) which means "garbage".