Listed as a TikTok trend sound, Ninja Santa has circulated online as a short festive meme clip rather than as part of a widely documented film, show or song. Its appeal comes from the instantly readable combination in its name: a ninja and Santa, stealth mixed with Christmas. Creators reuse it in seasonal edits, surprise reveals and lighthearted holiday jokes, where the familiar festive idea makes the stealthy twist easy to understand at a glance. Because it is short and scene-ready, it keeps returning whenever holiday content needs a playful, unexpected entrance.