Real Dictionary

slosh
verb: If a liquid sloshes around or if you slosh it around, it moves around in different directions.
verb: If you slosh through mud or water, you walk through it in an energetic way, so that the mud or water makes sounds as you walk.

slosh in American English
to shake or agitate (a liquid or something in a liquid)
to splash or move clumsily through water, mud, etc.
intransitive verb: to splash or move through water, mud, or slush
noun: watery mire or partly melted snow; slush
transitive verb: to stir or splash (something) around in a fluid

slosh in British English
noun: watery mud, snow, etc
verb: to throw or pour (liquid)