The sentence is a catchphrase, coming from the sports themed humor blog; Barstool Sports. After it got viral on the web, it became a hashtag, symbolizing the bound between all the members of the male sex.
The phenomenon started with a tweet from a writer of Barstool Sports, Feitelberg, where he quoted “some old guy”.
The quoted phrase was “Fridays are for the men, Saturdays are for the boys.”
Following the tweet, Barstool readers have created GIFs that properly represent the quoted philosophy.
Not even a week past the original tweet, Barstool published an article about the phrase and everything it is standing for.
The expression became a sensation, as men all over the world were embracing it with videos and clips, depicting drunken debauchery and heartfelt hedonism.
Saturdays are for the boys have conquered every major social media site via the hashtags that are calling other men into the brotherhood.
Sports people, such as Michael Phelps and Noah Syndegaard have also joined the representatives of the phrase.
Barstool had made the expression a part of their brand, by selling t-shirts quoting it, as well as in 2017, filming a bunch of athletes, saying the phrase.