Defn: The firing pin of a breechloader. Plunger bucket, a piston, without a valve, in a pump. — Plunger pole, the pump rod of a pumping engine. — Plunger pump, a pump, as for water, having a plunger, instead of a piston, to act upon the water. It may be single-acting or double- acting
PLUNK
Plunk, v. t. [Imitative.] [Chiefly Colloq.]
1. To pluck and release quickly (a musical string); to twang.
2. To throw, push, drive heavily, plumply, or suddenly; as, to plunk down a dollar; also, to hit or strike.
3. To be a truant from (school). [Scot.]
PLUNK
Plunk, n.
1. Act or sound of plunking. [Colloq.]
2. [Slang] (a) A large sum of money. [Obs.] (b) A dollar. [U. S.]
PLUNK
Plunk, v. i. [Chiefly Colloq.]
1. To make a quick, hollow, metallic, or harsh sound, as by pulling hard on a taut string and quickly releasing it; of a raven, to croak.