Verb plump down has 2 senses
  1. plonk down, plump down, plank down - drop heavily
    --1 is one way to drop
    Sample sentences:
    Somebody ----s something
    Somebody ----s somebody
    Somebody ----s somebody PP
    Somebody ----s something PP
  2. plank, flump, plonk, plop, plunk, plump down, plunk down, plump - 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"
    --2 is one way to set down, put down, place down
    Sample sentences:
    Somebody ----s something
    Somebody ----s somebody
    Somebody ----s somebody PP
    Somebody ----s something PP
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