1. (verb) set (something or oneself) down with or as if with a noise

• flump
• plank
• plonk
• plump
• plump down
• plunk
• plunk down

2. (adverb) with a short hollow thud

• plunk

1. (noun) the noise of a rounded object dropping into a liquid without a splash

• noise

2. (verb) drop something with a plopping sound

• drop

3. (verb) drop with the sound of something falling into water

• come down
• descend
• fall
• go down

4. (verb) set (something or oneself) down with or as if with a noise

• place down
• put down
• set down

1. (verb) set (something or oneself) down with or as if with a noise

• plonk