D defs.my
Entry 4 senses Webster, 1913

Plumper

· Plump·er · IPA /ˈplʌmpɚ/
01 n. One who, or that which, plumps or swells out something else; hence, something carried in the mouth to distend the cheeks.
  1. 1.
    One who, or that which, plumps or swells out something else; hence, something carried in the mouth to distend the cheeks.
  2. 2.
    A vote given to one candidate only, when two or more are to be elected, thus giving him the advantage over the others. A person who gives his vote thus is said to plump, or to plump his vote.(English Elections)
  3. 3.
    A voter who plumps his vote.[Eng.]
  4. 4.
    A downright, unqualified lie.[Colloq. or Low]