The word "mops up" commonly refers to the action of cleaning, tidying, or clearing up a place or situation. Its antonyms are words that signify actions that are the exact opposite of cleaning up, such as worsening, creating a mess, or adding chaos. Some antonyms for "mops up" are like spilling, scattering, or disorganizing. Other antonyms may include pickling, accumulating, collecting, or scattering. The choice of antonym depends on the context in which "mops up" is being used, but all indicate a lack of order or cleanliness. It is important to know these antonyms to avoid confusion or ambiguity in writing or speaking.