Emily Dickinson Lexicon

PLUMP, a. [Dan. plomp, plump, blunt, unhandy, clownish, rude; Sw. plump; D. plomp; G. plump. The primary sense seems to be thick, as if allied to lump and clump. See the noun.]

1. Full; swelled with fat or flesh to the full size; fat; having a full skin; round; as, a plump boy; a plump habit of body. The famish'd crow grows plump and round. – Swift.
2. Full; blunt; unreserved; unqualified; as, a plump lie.