What does "soak" mean?

Additional senses

1. 2.3. To draw in by the pores, or through small passages; as, a sponge soaks up water; the skin soaks in moisture.
2. 3.To make (its way) by entering pores or interstices; -- often with through. The rivulet beneath soaked its way obscurely through wreaths of snow. Sir W. Scott.
3. 4.Fig.: To absorb; to drain. [Obs.] Sir H. Wotton.
4. 5.To lie steeping in water or other liquid; to become sturated; as, let the cloth lie and soak.
5. 6.To enter (into something) by pores or interstices; as, water soaks into the earth or other porous matter.
6. 7.To drink intemperately or gluttonously. [Slang]