Fans are speculating that Travis Barker's skull and tulip tattoo, first revealed in May 2021, may be a tribute to the daughter he and Kourtney Kardashian lost to a miscarriage. The couple publicly shared news of their pregnancy loss in June, detailing in Barker's documentary, "Travis Barker: Louder Than Fear," that they had lost their baby girl, whom they had planned to name Tulip.

According to the documentary, Kardashian became pregnant shortly after she and Barker began dating in January 2021. The pair learned they were expecting a daughter before discovering, three months into the pregnancy, that the baby no longer had a heartbeat. Kardashian described the loss as devastating, stating in the film, "We cried for days."

The fan theory gained traction on Reddit, where a user suggested Barker's tattoo might have been intended as an honor to their unborn child, rather than a dig at his ex-wife Shanna Moakler, as some had previously interpreted. Other users on the platform agreed with the sentiment, calling the idea heartwarming.

Kardashian and Barker, who married in May 2022, publicly announced they were expecting their first child together in June 2023. Kardashian revealed the pregnancy at a blink-182 concert by holding up a sign that read, "Travis, I'm pregnant."

The couple welcomed their son, Rocky, in November 2023. Barker also has a tattoo believed to honor their son, based on a stencil he previously shared. Kardashian has three children with ex-partner Scott Disick, and Barker has two children with Moakler, in addition to helping raise his former stepdaughter.