plop (n.)
- bang
- blubber
- boil
- bubble
- cast
- cave
- chuck
- clap
- dash
- decline
- dive
- droop
- drop
- fall
- ferment
- fizz
- fizzle
- fling
- flop
- flush
- founder
- full
- gurgle
- hiss
- hurl
- lapse
- lower
- parachute
- pitch
- plank
- plumb
- plummet
- plump
- plunge
- plunk
- pop
- pounce
- right
- sag
- set
- settle
- sharp
- simmer
- sink
- skin-dive
- slap
- slouch
- slump
- smack
- sound
- sparkle
- square
- stoop
- straight
- swag
- swoop
- throw
- thrust
- toss
- work
plop (v.)
- bang
- blubber
- boil
- bubble
- burble
- cast
- cave
- chuck
- clap
- dash
- decline
- dive
- droop
- drop
- effervesce
- fall
- ferment
- fizz
- fizzle
- fling
- flop
- flump
- flush
- founder
- full
- guggle
- gurgle
- hiss
- hurl
- lapse
- lower
- parachute
- pitch
- plank
- plumb
- plummet
- plump
- plunge
- plunk
- pop
- pounce
- right
- sag
- seethe
- set
- settle
- sharp
- simmer
- sink
- skin-dive
- slap
- slouch
- slump
- smack
- sound
- spang
- sparkle
- square
- stoop
- submerge
- subside
- swag
- swoop
- throw
- thrust
- toss
- work
