White Tee Rizz grew as online slang culture turned rizz, meaning charm or flirting skill, into a shorthand for confident edits. The white tee became part of the joke because it is the simplest outfit that still gets framed as attractive when paired with the right music and timing. The extended version spread on short form video as creators needed a longer loop for reveals and transitions. It stays popular because the reference is instantly understood, letting a basic look, a smirk or a walk in read as a deliberate rizz moment.