Songfacts®:

• Ohio rapper Michael White IV, who performs under the moniker of Trippie Redd, first gained traction in 2017 with his debut mixtape, A Love Letter to You, which reached #64 on the Billboard 200, and its sequel, A Love Letter to You 2, which peaked at #34. This song, which Redd dropped on December 6, 2017, became his first Hot 100 hit.
• The song is a collaboration with Travis Scott. The title is possibly a reference to the 2008 Christopher Nolan Batman film The Dark Knight, though neither artist directly references The Dark Knight on the track. (Redd does mention another superhero - Mr Fantastic). It may also be a play on Scott's Birds in the Trap Sing McKnight album.
• The "Dummo" part of the title is likely a reference to Redd's beef with 6ix9ine. (Redd had passed on the beat to 6ix9ine for his breakthrough single "Gummo," but later distanced himself from the Brooklyn rapper following. allegations that 6ix9ine had indulged in sexual relations with a minor).
• The song was produced by Da Honorable C.N.O.T.E., who previously worked with Scott on his Birds in the Trap Sing McKnight track "Way Back." The producer told Billboard about his collaboration with Trippie Redd:
  
  "Fooly Faime linked up with Trippie Redd, and they already had the song done by the time I got to the studio. I thought it was so hard, and what Travis Scott did on some of those melodies was crazy. That song is very entertaining to me. I wasn't familiar with [Trippie Redd] at first until I got to the studio. He started playing me some songs and he wasn't really feeling the beats I was playing, so he showed me what he can do. We ended up making another song that's hard as f---. Mike Dean mixed the vocals on that -- he killed Travis' s--t."
• Da Honorable C.N.O.T.E. told Genius how he tapped into the mindset of pending war and nuclear destruction for his ominous beat.
  
  "I think somebody was talking about Korea, bombing America or some s--t," he explained. "So I'm like, 'What the f--k do that sound like?' Like if the world was just f---ed up and you came outside into the world. Some of my beats tell stories. This happens to be one of those beats that tells stories."