plump

sufficiently fat so as to have a pleasing fullness of figure

a chubby child

pleasingly plump

straight down especially heavily or abruptly

the anchor fell plump into the sea

we dropped the rock plump into the water

the sound of a sudden heavy fall

give support (to) or make a choice (of) one out of a group or number

I plumped for the losing candidates

make fat or plump

We will plump out that poor starving child

set (something or oneself) down with or as if with a noise

He planked the money on the table

He planked himself into the sofa

drop sharply

The stock market plummeted