I. plop 1 /plɒp $ plɑːp/ BrE AmE noun [countable]
the sound made by something when it falls or is dropped into liquid
with a plop
The soap fell into the bath with a loud plop.
• • •
THESAURUS
■ made by a liquid
▪ splash the sound that a liquid makes when something hits it, or when it hits against another thing:
She jumped into the pool with a big splash.
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the splash of the waves against the rocks
▪ gurgle the low sound that water makes when it flows gently over or through something:
the gurgle of a stream
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She listened to the gurgle as the water drained out of the bath.
▪ plop the sudden short sound when something is dropped into a liquid:
Kate dropped the ice into her glass with a plop.
II. plop 2 BrE AmE verb ( past tense and past participle plopped , present participle plopping )
[ Date: 1800-1900 ; Origin: From the sound ]
1 . [intransitive always + adverb/preposition] to fall somewhere, making a sound like something dropping into water
plop into/out of/onto etc
The frog plopped back into the pond.
2 . [transitive] to drop something, especially into a liquid, so that it makes a sound
plop something into something
I plopped a couple of ice cubes into the drink.
3 . plop (yourself) down to sit down or lie down heavily:
She plopped down on the sofa beside me.