The 'Choo-Choo' meme, most famously known through the 'Choo-Choo Motherfucker' catchphrase, typically features a powerful locomotive—often a distorted Thomas the Tank Engine—speeding toward a target. It serves as a visual metaphor for an unstoppable force or an impending doom that one cannot escape. Emerging from early internet image boards, the meme evolved into various formats, including the popular 'Train Hitting School Bus' template. It is frequently used to represent reality, responsibilities, or bad luck crashing into someone's well-laid plans with zero remorse.