beer o’clock , n :
(slang, humorous) The time of the first beer (or alcoholic beverage) of the day. To celebrate April Fools’ Day, this week we are featuring a series of unusual concepts. Enjoy!
Source http://handbookblogger.blogspot.com/2018/04/beer-oclock-word-of-day-for-april-2-2018.html
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