He left public service after voters 'booted' him from the mayor's office. [=he chose not to work for the government after he was not reelected as mayor]
I heard they 'gave her the boot'. [=they fired her; they told her she could no longer work for them]
You don't need all these applications to open every time you 'boot' your computer.
(..) -...and enter this woman's body now. -Get out of here, ghost. Get out of here. Don't you dare turn around and come back. For if you do, all the armies of my boot will kick you in the teeth and you will be cast up and thrown in the dirt and thrust back to perdition! And as long as I have teeth, (..)2007 There Will Be Blood