The common name for the typical Middle Eastern hand and finger drum very similar (if not identical) to that more usually known as darbuka in North Africa. There are various alternative spellings in Turkey, Armenia and elsewhere in the region.
It is a single-headed, goblet-shaped drum which is played horizontally, usually in the players lap. It sounds best in a dry environment.
The name is an approximation of the two basic sounds the drum makes: 'dum' (the bass tone) and 'bek' (the high-pitched crack from the edge of the drum), although a much greater variety of sound can be achieved.