What is meant by the word "غربال" (ghirbal) in the saying of the Messenger of Allah, may Allah's peace and blessings be upon him: "Do not eat while reclining, nor on a ghirbal"?

The aforementioned Hadith was narrated by Al-Tabarani and Ibn Asakir from Abu Al-Darda' that the Prophet, peace and blessings be upon him, said: "Do not eat while reclining, nor on a sieve, nor take a part of the mosque as a prayer-place where you pray nowhere else, nor step over people's necks on Friday, for Allah will make you a bridge for them on the Day of Resurrection." The word "Ghirbal" (sieve) in the Arabic language refers to that with which flour and other things are sieved, and it is also applied to a tambourine. The intended meaning in the Hadith was not explicitly stated.