slop

Etymology 1

From Middle English slop, sloppe, slope, from Old English *slop (found in oferslop (“an outergarment, surplice”)). Cognate with Icelandic sloppur (“a long, loose gown”).

noun

1. (obsolete) A loose outer garment; a jacket or overall.
2. (South Africa, chiefly in the plural) A rubber thong sandal.
3. (in the plural) See slops.

Etymology 2

Probably from Middle English *sloppe (attested in plural form sloppes), representing Old English *sloppe (attested in cū-sloppe), related to slip.

noun

1. (uncountable) Semi-solid like substance; goo, paste, mud, pulp.
2. (sometimes in the plural) Scraps used as food for animals, especially pigs or hogs.
3. (chiefly in the plural) Inferior, weak drink or semi-liquid food.
4. (sometimes in the plural) Domestic liquid waste; household wastewater.
5. Water or other liquid carelessly spilled or thrown about, as upon a table or a floor; a puddle; a soiled spot.
6. (dated) Human urine or excrement.
7. (slang) Fellatio.
   All on my dick, she won't stop, yah I told her to give me some slop 2018, “Pull Up”, in Northsbest, performed by Lil Mosey

verb

1. (transitive) To spill or dump liquid, especially over the edge of a container when it moves.
   I slopped water all over my shirt.
2. (transitive) To spill liquid upon; to soil with a spilled liquid.
   a little Durham bull butted the pail and slopped him with the milk 1950, Howard William Troyer, The salt and the savor, page 58
3. (transitive) In the game of pool or snooker to pocket a ball by accident; in billiards, to make an ill-considered shot.
4. (transitive) To feed pigs.
5. (intransitive) To make one's way through soggy terrain.
   We slopped through paddies in 100-degree-plus heat and slept with one eye open at night. 1980, The Leatherneck, volume 63, page 13

Etymology 3

Alteration of ecilop, from back slang for police.

noun

1. (uncommon, costermongers) A policeman.
   Harry looked rather bulky, you know, Tom, and the slop (policeman) says, 'Hallo, what you got here?' and by [blank] he took us both before the beak. After hearing the slop tell his tale, he says to me: 'What do you know of this man? […] 1866, Temple Bar: A London Magazine for Town and Country Readers
   Covey’s most stimulating impression on the sense of colour is in the blue of the police. He says he shouldn’t have thought that there were so many ‘slops’ in the world, and he seems to yield for a moment to the depressing conviction that we are too much governed. 1899, Richard Whiteing, chapter XXIV, in No. 5 John Street, page 240