To 86 someone is to fire them from a job or throw them out of a location. To 86 something is to throw it out. The term “86” has never meant to kill someone. This is the kind of projection conservatives indulge in to excuse their own violent behavior and language.
Definition of eighty-six
: to refuse to serve (a customer)
also : to get rid of : THROW OUT
And here’s Dictionary.com on the definition of the term 86:
verb (used with object) Slang.
to refuse to serve (an undesirable or unwelcome customer) at a bar or restaurant.
to reject; discard.