eighty-sixed

Traditionally, to be eighty-sixed was to be cut off from further booze service. This term comes all the way from the wild west (and not the 1980's as previously defined), where a bartender would only serve the 86 proof whiskey to customers already too drunk (86 proof was reserved for the ladies. The wild west was tough).
Today it means to be cut-off at the bar, kicked out of the bar, or to be cut-off or barred from something in general.

Restaurant lingo meaning "take an item off the menu." By extension it can also mean to get rid of almost anything (including doing away with somebody). The Urbandictionary entry attributing the term to the 1980s is erroneous. I worked as a short order cook in the late 1960s and it was in use in a half dozen NewYork city joints where I worked. Oldtimers say the term was around in the 1940s and that the derivation is Article 86 of the New York Liquor Code which describes the circumstances under which liquor should be withheld from a customer.

to eighty-six a pregnancy is to medically terminate it, taken from the name of the "abortion drug" RU-486.

A woman might eighty-six a fetus in the earliest weeks of being pregnant, with the help of a health care provider who can administer a brief series of oral dosages.

Eighty-sixing is normally done only up until a point when a pregnancy is so far along that a surgical procedure is needed in order to abort.

to dispose of someone or something, to get rid of someone or something

to throw out or to take away or to deny

a band from Cape Cod, Ma

verb- To kill, knock off, eradicate

To get barred or trespassed from an establishment (e.g., a casino).