Real Dictionary

splash
singular noun: A splash is the sound made when something hits water or falls into it.
verb: If you splash a liquid somewhere or if it splashes, it hits someone or something and scatters in a lot of small drops.
verb: If you splash about or splash around in water, you hit or disturb the water in a noisy way, causing some of it to fly up into the air.

splash in American English
to cause (a liquid substance) to scatter and fall in drops or blobs
intransitive verb: to dash a liquid or semiliquid substance about
noun: the act of splashing
transitive verb: to wet or soil by dashing masses or particles of water, mud, or the like; spatter

splash in British English
noun: an instance or sound of splashing
verb: to scatter (liquid) about in blobs; spatter