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or 86 (ā′tē-sĭks′)
tr.v. eight·y-sixed, eight·y-six·ing, eight·y-six·es or 86ed or 86·ing or 86·es Slang
1. To refuse to serve (an unwelcome customer) at a bar or restaurant.
a. To throw out; eject.
b. To throw away; discard.

[Probably from waiters' and bartenders' slang of the 1920s and 1930s, originally used to indicate that an item on the menu was not available, perhaps rhyming slang for nix.]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.86 - being six more than eighty86 - being six more than eighty    
cardinal - being or denoting a numerical quantity but not order; "cardinal numbers"
References in periodicals archive ?
Researchers compared blood samples from 86 AD patients with those of a similar group of healthy people and found that AD study participants had four times higher blood levels of the DDT byproduct DDE than healthy participants and that those with the highest blood levels of DDE faced a four-times-greater risk of developing AD than those without the byproduct.