plumper
adjective
Definitions
Having a full and rounded shape; chubby, somewhat overweight.
Example: a plump baby; plump cheeks
Fat.
Sudden and without reservation; blunt; direct; downright.
noun
Definitions
One who plumps or swells out something else.
That which plumps or swells out something else.
Hence, something carried in the mouth to distend the cheeks.
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.