plop vs colloquialism

plop and colloquialism both are nouns.

Word	Noun	Adjective	Verb	Adverb
plop	Yes	No	Yes	Yes
colloquialism	Yes	No	No	No

plop (noun)	colloquialism (noun)
the noise of a rounded object dropping into a liquid without a splash	a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech

plop (verb)	colloquialism (verb)
set (something or oneself) down with or as if with a noise
drop with the sound of something falling into water
drop something with a plopping sound

plop (adverb)	colloquialism (adverb)
with a short hollow thud