Slang. a customer considered undesirable or unwelcome and refused service at a bar or restaurant.
adjective
5.
amounting to 86 in number.
6.
Slang. sold out; out of stock.
verb (used with object), Slang.
7.
to refuse to serve (an undesirable or unwelcome customer) at a bar or restaurant.
8.
to reject; discard.
Origin
1960-65,for def 7; sense “refuse” perhaps as rhyming slang for nix1
Word Origin and History for eighty-six
v.
slang for "eliminate," 1936, originated at lunch counters, a cook's word for "none" when asked for something not available, probably rhyming slang for nix.
Slang definitions & phrases for eighty-six
eighty-six
noun
A cook's term for ''none'' or ''nix'' when asked for something not available (1930s+ Lunch counter)
A person who is not to be served more liquor: known as an ''eighty-six,'' which means: ''Don't serve him''(1930s+ Bartenders)
verb
: We had to eighty-six the French dip
(also eight-six) To eject or interdict someone: I'll have you eighty-sixed out of this bar/ I been eighty-sixed out of better situations(1959+)
To reject; refuse; eschew: Kids, eighty-six those video games(1980s+)
To kill; destroy; annihilate: There'd been serious pragmatic reasons for not eightysixing the man then and there(1970s+)