sap

(noun) a watery solution of sugars, salts, and minerals that circulates through the vascular system of a plant.

(noun) a person who lacks good judgment. Synonyms: fool, saphead, muggins, tomfool.

(noun) a piece of metal covered by leather with a flexible handle; used for hitting people. Synonyms: blackjack, cosh.

(verb) deplete. Synonyms: run down, exhaust, play out, tire. Examples: "Exhaust one's savings." "We quickly played out our strength."

(verb) excavate the earth beneath.