Plunge

plunj, v. t. [plunged (plunjd), plunging.]" To immerse in a fluid; to drive into 'flesh, earth, water, etc. — r. i. To thrust or drive one's self into water, or a fluid; to dive, rush in; to fall or rush (into distre or a state in which the person or thing is surrounded or overwhelmed); to pitch or throw one's self headlong, as ahorse.— n. Act of thrusting into water or any penetrable substance; act of pitching or throwing one's self headlong, like an unruly horse.— Plun'ger, n. One who or that which plunges; a diver; a long, solid cylinder, used as a and forcer in pumps.