adjective
They went on a diet because they were getting a bit plump
verb
When you get up, please plump up the pillows on the sofa
verb
I was so tired that all I could do was plump down in an armchair and watch TV
She plumped down the defective mixer on the counter and asked for a refund
Given the choice, they plumped for a film rather than the circus
noun
He dropped the book on the floor with a plump
adverb
As I came out of the bank, I ran plump into a policeman
adjective
He asked her to marry him and she gave him a plump 'no'
US