Pronunciation: (plungk),[key] —v.t. 1. to pluck (a stringed instrument or its strings); twang: to plunk a guitar. 2. to throw, push, put, drop, etc., heavily or suddenly; plump (often fol. by down): Plunk down your money. She plunked herself down on the seat. 3. to push, shove, toss, etc. (sometimes fol. by in, over, etc.): to plunk the ball over the net; to plunk a pencil into a drawer.
—v.i. 1. to give forth a twanging sound.
2. to drop heavily or suddenly; plump (often fol. by down): to plunk down somewhere and take a nap.
—n. 1. act or sound of plunking.
2. Informal.a direct, forcible blow.
3. Slang.a dollar.
—adv. 1. Informal.with a plunking sound.
2. Informal.squarely; exactly: The tennis ball landed plunk in the middle of the net.