Definition of "plumper"

plumper

adjective
1. comparative form of plump: more plump
noun
plural plumpers
1. One who plumps or swells out something else.
2. That which plumps or swells out something else.
3. (chiefly in the plural) A small ball or pad carried in the mouth to fill out the cheeks.
  Quotations
  I'll open my mouth with as much care as Mrs Bridget Button, who wears cork plumpers in each cheek and never hazards more than six words for fear of showing them.
  1780, Hannah Cowley, The Belle's Stratagem, I.4
4. In elections, a vote given to one candidate only, when two or more are to be elected, thus giving him or her the advantage over the others; a person who gives his or her vote thus is said to plump, or to plump his or her vote.
5. A voter who plumps his or her vote.
6. A downright, unqualified lie.
7. (Internet slang) An obese woman, especially in pornography.