William Knifeman is the spirit guide who appears to Bear in Reservation Dogs, the FX comedy-drama about four Indigenous teenagers in rural Oklahoma. His shout comes from his role as a blunt, otherworldly mentor, often interrupting the present with a voice from the past. As clips from the show circulated on social media and soundboards, fans began isolating the shout for reaction edits and short videos. It endures because it is instantly recognisable to viewers of the show while still working as a standalone burst of surprise, warning or defiance for new audiences.