noun1. a bucket that food scraps and peelings are put into
After meals, all the scraps go into the slop bucket in the kitchen.
2. a bucket that is used for collecting waste water from washbasins, or from chamber pots (ceramic pots used overnight in bedrooms, in place of a toilet)
the stench of the slop bucket
3. a bucket containing food scraps and peelings, to be fed to livestock, esp pigs
The dog was eating from the slop bucket.