slop1 past tense and past participle slopped, present participle slopping
1 [intransitive always + adverb/preposition]
if liquid slops somewhere, it moves around or over the edge of a container in an uncontrolled way [= splash]:
Coffee slopped over the rim of her cup.
With each wave, more water slopped into the cabin.
2 [transitive always + adverb/preposition]
to put a liquid somewhere in a careless way:
She put the glass down, slopping beer onto the table.
3 [transitive] American EnglishTA
to feed slop to pigs
slop around/aboutphrasal verb
Jan would never slop around in old jeans.
slop outphrasal verb
if prisoners slop out, they empty their toilet buckets
—slopping-out noun [uncountable]