The 'Brojob' meme originated from a 2012 4chan greentext story where a user described performing sexual acts on their male friends as a 'prank,' punctuated by the chant 'BROJOB! BROJOB!' and 'CHOO CHOO!' like a train. The meme satirizes the idea of 'no-homo' behavior taken to an absurd extreme, mocking the mental gymnastics people might use to justify certain actions while maintaining their straight identity. Over time, it became a staple of internet culture, often used to humorously comment on intense male bonding, ironic situations, or just to troll. The visual usually depicts a person enthusiastically celebrating the 'prank,' highlighting the absurdity of the original story.