splosh vs squish

splosh is not a noun while squish is a noun.

Word	Noun	Adjective	Verb	Adverb
splosh	No	No	Yes	No
squish	Yes	No	Yes	No

As verbs, splosh and squish are synonyms defined as:

Other synonyms of splosh include slop, slosh, splash, squelch.

splosh (noun)	squish (noun)
	the noise of soft mud being walked on

splosh (verb)	squish (verb)
dash a liquid upon or against	put (a liquid) into a container or another place by means of a squirting action
cause (a liquid) to spatter about, especially with force	walk through mud or mire
walk through mud or mire
make a splashing sound