The word "muds" can refer to clumps of wet, sticky dirt or other substances, but there are many synonyms that can be used in its place. For example, you might describe it as slop, muck, slush, or sediment. Other possibilities include grime, filth, smut, or sludge. Depending on the context, you could also use words like ooze, gunk, goo, or slime. Ultimately, the choice of synonym will depend on what you are trying to convey about the nature and appearance of the substance in question. By selecting the right word from this wide range of possibilities, you can help your readers or listeners understand your meaning more clearly.