1 : swill sense 2a, slop. 2 : nonsense, balderdash.
What does the word hogwash mean?
Hogwash is complete nonsense, lies, or ridiculous actions. If an advertisement claims that taking one vitamin pill a day will make you ten times stronger, that's hogwash. The informal hogwash is perfect for talking about falsehoods and foolishness.
Where did the term hogwash come from?
The word hogges wash first appeared in the 1400s in its literal sense, meaning swill for a hog. By the 1600s hog wash was used in an informal manner to mean an alcoholic beverage that did not have a strong enough alcohol content for the drinker.