The phrase comes from the Fifth Amendment to the United States Constitution, which protects a person from being compelled to incriminate themselves. In hearings, interviews and courtroom dramas, invoking it has become shorthand for refusing to answer without saying anything damaging. Online, short clips of the refusal are reused far beyond legal settings, especially in political commentary and reaction videos where someone is caught out by a difficult question. Its staying power comes from that instant recognition: everyone understands the dodge, even when no legal case is involved.