SAG

[verb] [I] -gg- - to drop down to a lower level in the middlea sagging roof/floor/bedHis cheeks sagged and he walked with a stoop.The shelf sagged under the weight of the heavy books.(figurative) Her spirits sagged (= She felt unhappy) at the thought of all the work she had to do that evening. [I](figurative) The dollar held up well this morning but the pound sagged (= was reduced in value).(figurative) Halfway through the lecture my interest began to sag (= I began to lose interest).A sag bag is a large beanbag.