plump

Make fat or plump.

“We will plump out that poor starving child”

Set (something or oneself) down with or as if with a noise.

Drop sharply.

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

“I plumped for the losing candidates”

Sufficiently fat so as to have a pleasing fullness of figure.

“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.