plop
1. [ verb ] set (something or oneself) down with or as if with a noise
Synonyms: plunk flump plonk plump_down plunk_down plump plank
Examples:

"He planked the money on the table" "He planked himself into the sofa"

Related terms: set_down plonk
2. [ verb ] drop with the sound of something falling into water
Related terms: descend
3. [ verb ] drop something with a plopping sound
Related terms: drop
4. [ adverb ] (informal) with a short hollow thud
Synonyms: plunk
Examples:

"plop came the ball down to the corner of the green"

Related terms: colloquialism
5. [ noun ] the noise of a rounded object dropping into a liquid without a splash
Related terms: noise
Similar spelling:   Ploof
  plf
  pleb