To spray someone, something, or oneself all over with a hose, especially in order to clean them or it off. A noun or pronoun can be used between "hose" and "off." The kids were so covered in muck that we had to hose them off before they went into the house. Please hose off my truck if you're going to take it off-roading like that! I went over to the spigot and hosed myself off after digging in the garden all morning.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.