to sit down suddenly and heavily, or to put an object or child down suddenly and without taking care

She plumped down next to me on the sofa. 她挨着我一屁股坐在沙发上。

He rushed in and plumped himself down in a chair. 他冲进房间，一屁股坐到椅子上。

Joan sat down at the front of the bus, and plumped her bags down beside her. 琼在公共汽车前部坐下，把行李放在身边。

to choose something or someone, especially after taking time for careful thought

I'm going to plump for the vegetable curry. 我决定选蔬菜咖哩。

Which film did you plump for in the end? 你们最后选择去看哪部电影了？

to make something fuller or fatter

She went round plumping up the cushions. 她走来走去，把垫子拍得松松的。

Lips can be plumped up with injections. 唇部可以用注射的方式变得丰满。