Most dictionaries say the term "eighty-six" comes from employees in the restaurant industry.

VOA: special.2010.01.08

You may know that there are big fights being waged around the country now between governments that want restaurants to put calories on their labels -not on labels but on the restaurant menus, or on the menu boards in the restaurant, and the restaurant industry doesn't want this at all.

你们或许知道在政府与餐饮业间,正在进行一场大争斗,政府要求餐馆将食物的热量值写在标签上,不是标签而是餐馆菜单或菜单板上,而餐饮业很不愿意这样做

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

We'll talk about the amount of money that goes into Washington to lobby on behalf of the food industry, and we'll use a few exemplars of that like the National Restaurant Association which is the major trade association, as you might guess, of the restaurant industry.

我们会讲到以食品工业的名义,游说华盛顿政府支付的资金,我们会用一些例子,比如国际酒店联盟这样主要的商业联盟,如你们所想,在饭店行业中

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选