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general::
Phrase(s): slosh something on(to) someone or something [and] slosh something on
to splash or spill a liquid onto someone or something. • Betty sloshed the charcoal lighter fluid on Fred, and he went in to wash it off. • Then she sloshed the fluid onto the charcoal. • Slosh on some more.
McGrawhill's American Idioms And Phrasal Verbs