Plump (3)

Plump, v. i. [Cf. D. plompen, G. plumpen, Sw. plumpa, Dan. plumpe. See Plump, a.] 1. To grow plump; to swell out; as, her cheeks have plumped.

2. To drop or fall suddenly or heavily, all at once.“Dulcissa plumps into a chair.” Spectator.

3. To give a plumper. See Plumper, 2.