There are many synonyms for the phrase "slush around." Some of these include slosh, splash, squelch, splosh, swish, swash, and sploosh. All of these words describe the same action of moving through wet or slushy terrain. The use of these synonyms can help to add variety and color to writing, particularly in descriptive scenes set in locations where there is a lot of moisture. By using different words to describe the same action, writers can create a more vivid and interesting picture in the mind of the reader, making their writing more engaging and memorable.