Verb
(transitive with to) (idiomatic, Britain, informal) To fire, sack, or eject someone.
I am sorry for your husband and children, but I have to give you the boot.
They said I couldn't do the job and gave me the boot. So, now I'm looking for work again.
Used other than figuratively or idiomatically: see give, the, boot.
Source: en.wiktionary.org