hang low
verbUK /hæŋ ˈləʊ/ · US /heɪŋ ˈloʊ/
Etymology From hang and low.
1
Idiomatic To droop or sag heavily; to remain at a low altitude.
- As I joined the train at Waverley Station, Edinburgh, the skies hung low, the rain fell, and as the journey proceeded there was little change; […].1956 December, W. J. Alcock, “On the Footplate of the "Elizabethan"”, in Railway Magazine, page 819: