When you drink the last drink you made right before bed but were too drunk to finish it (or even start it) and you don't want to waste good booze so you shame pound it. Prolonging the imminent shame spiral.
Imagine: A layer of mixer, a layer of liquor and a layer of melted ice.
Give it a stir, good as new.
She woke up to find the multi-layer concoction of a drink she made before she went to bed and instead of wasting it she shame pounded it and went on with her day.