clean down
To clean someone or something by brushing or hosing the dirt off. A noun or pronoun can be used between "clean" and "down." You need to clean down your muddy car before the wedding tomorrow. We had to clean ourselves down after doing that color run.
clean someone or something down
to clean someone or something by brushing or with flowing water. He was covered with mud, and we used the garden hose to clean him down. Please clean down the sidewalk.