Bumpin that comes from Charli XCX and her 2024 album Brat, where the phrase repeats through the single 360 and returns in the closing track 365. Brat sparked a wider summer trend built around bold, messy confidence, and this tiny hook became one of its most reusable pieces on TikTok and short-form video. Creators isolated the line because it works without context, instantly naming the reference for fans while functioning as a catchy beat hit for everyone else, which kept it circulating long after the album launch.