The phrase comes from a widely circulated confrontation video in which a man dismisses another person with the warning, “You’re not that guy, pal. Trust me.” Short edits focused on the most quotable portion and spread across meme videos and social platforms. The clip remains useful because its meaning is immediate: someone is pretending to have authority, toughness, or skill they do not possess. Creators continue using the shortened line as a compact reaction to boasting, posturing, and confidence that is about to be disproved.