‘I Can Do This All Day’: The Evolution of Captain America’s MCU Catchphrase

Any superhero is incomplete without an iconic catchphrase. Some classics include: “I’m Batman”, “Flame on”, and of course, “SMASH!”. Oftentimes, these catchphrases come about organically before being used again and again at times when the hero needed that extra boost of strength and confidence. While there were many punchlines used throughout the MCU, one of the most memorable came from Captain America: “I can do this all day.” Cap’s catchphrase came up several times, both as Captain America and Steve Rogers, and every time it held the same meaning, no matter the scenario.