slop 2 BrE AmE noun [uncountable] ( also slops [plural] )
[ Date: 1300-1400 ; Origin: Probably from Old English sloppe 'body waste' ]
1 . waste food that can be used to feed animals
2 . British English dirty water or ↑ urine :
Prisoners had to use slop buckets at night.
3 . informal food that is too soft and tastes bad:
Do you actually expect us to eat this slop?