Definition

Acronym for 'Cold Frothy One' or 'Cold Frosty One'—a humorous term for a refreshing cold pint of lager or cider, typically used when suggesting a casual drink with coworkers or friends.

Example Usage

Fancy grabbing a couple of CFOs after work?

Source: Urban Dictionary (https://www.urbandictionary.com/define.php?term=CFO&defid=12869777)