n.
Pronunciation: ' pl ə mp
Function: verb
Etymology: Middle English
Date: 14th century
intransitive verb
1 : to drop, sink, or come in contact suddenly or heavily < plump ed down in the chair>
2 : to favor or decide in favor of someone or something strongly or emphatically ― used with for
transitive verb
1 : to drop, cast, or place suddenly or heavily
2 : to give support and favorable publicity to