wash out of
wash someone out of somethingand wash someone out
to make it necessary for a person to leave a place or program; to wash someone up. (See also wash someone out.) That professor just loves to wash students out of the course. The professor washed out over half the class.
wash something out of somethingand wash something out
to clean some kind of dirt from something. You had better wash all the stains out of the clothing before you put it in the dryer. You will want to wash out the dirt.