«قَاعِدْ يِنِش»

The saying describes someone who is completely unoccupied. His only activity is brushing flies away, which makes this pointless motion a picture of empty hours and a lack of any real work.

As a remark, it draws attention to idleness by naming the single trivial thing the person is doing, so the absence of any genuine occupation becomes plain through that one small image.

Use it of a person who has no work or task at hand and is passing the time without doing anything useful. The image of brushing off flies stands in for that empty, unoccupied state.