to drain out to the last drop: to squeeze, wring, or swallow something until nothing is left in it.
The picture behind this verb is the last drop. Hebrew already had words for tipping a liquid out and for emptying a container: שָׁפַךְ pours, רִיק empties. This word is about what happens at the end of that, when someone presses, wrings, or swallows until there is genuinely nothing more to come.
Only seven verses use it, and they fall into three settings:
- a priest letting a bird's blood run out against the altar until the body is empty
- Gideon twisting his soaked fleece and squeezing a whole bowl of dew out of it
- a person tipping a cup back and swallowing even the sludge at the bottom
The third setting is where the word does its heaviest work. Prophets and psalm writers picture God's judgment as a cup handed to a person or a nation, and this verb insists that the cup gets finished. Jerusalem does not sip the cup that makes her stagger, she drains it (Isaiah 51:17). The wicked do not merely taste the wine of God's anger, they swallow the dregs (Psalm 75:8). In Ezekiel 23:34 the woman who stands for Jerusalem is told she will drink the cup, drain it, and then gnaw on its broken pieces.
Notice that the ordinary word for drinking (שָׁתָה) usually sits right beside it in those verses. The two are not saying the same thing twice. The first says the cup was drunk. This one says it was finished.