Synonyms for slop

Most common

1. Garbage — content or entertainment which is worthless, or produced and consumed mindlessly. Junk output from generative…

garbage US AU CA, pink slime, rubbish, tripe, cheapie informal, gash vulgar slang UK

2. Glop

glop, mush, goo, treacle, gloop

3. Swill — scraps used as food for animals, especially pigs or hogs

4. Mire — any semisolid substance; goo, paste, pulp. Soft, liquid mud or snow

Other

pig's-wash, flip-flop, toppy, pigswill, filth slang UK, plod slang UK, shovelware slang, sloppy toppy vulgar slang, brizz slang rare

1. Slosh

slosh, squish informal, splash, squelch, splosh

2. Spill

spill, splatter

n. 1
Any semisolid substance; goo, paste, pulp. Soft, liquid mud or snow.
n. 2
Scraps used as food for animals, especially pigs or hogs.
v. 1
To spill or dump liquid upon; to soil with a spilled liquid.
I slopped water all over my shirt.
v. 2
In a game of pool or snooker, to pocket a ball by accident; in billiards, to make an ill-considered shot.

Plural: slops → rubbishes, tripes, cheapies, gashes…
Past participle: slopped
e.g. slopped → sloshed, squished, splashed, squelched…

Use in printed books, per decade from 1850 to 2019.

3 letters: goo¹
4 letters: mush¹, gash¹, mire¹, plod¹, glop¹
5 letters: spill¹, filth¹, slush¹, tripe¹, swill¹, slosh¹, gloop, toppy, brizz
6 letters: splash¹, squish, splosh
7 letters: garbage², rubbish², treacle, hogwash², squelch¹, cheapie
8 letters: splatter², pigswill
10 letters: shovelware

The small number after each word is its number of syllables (garbage² = 2 syllables).