Real Dictionary

clear out
When you have a clear-out, you collect together all the things that you do not want and throw them away.
phrasal verb: If you clear out a container, room, or house, you tidy it and throw away the things in it that you no longer want.
phrasal verb: If you tell someone to clear out of a place or to clear out, you are telling them rather rudely to leave the place.

clear out in British English
to clear by emptying
to go away: often used imperatively
to remove the contents of
noun: a disposal or removal of objects
noun: the act or an instance of clearing out