plump down

Verb	1.	plump down - drop heavily Synonyms: plank down, plonk down
	2.	plump down - 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" Synonyms: plonk, plunk down, plump, plunk, flump, plank, plop

drop, plank down, plonk down