The line comes from Step Brothers, the 2008 comedy starring Will Ferrell as Brennan Huff and John C. Reilly as Dale Doback. In the film, the two reluctant adult stepbrothers discover they share the same interests and quickly bond, and Dale's question has become shorthand for that instant connection. Clips of the exchange circulated widely as a reaction sound on TikTok, YouTube and meme pages, where creators reuse it to mark new friendships. Its simple wording and earnest delivery keep it easy to recognise even for viewers who have not seen the film.