This iconic clip originates from the 2004 comedy classic "Anchorman: The Legend of Ron Burgundy." In the scene, Ron Burgundy (Will Ferrell) is speaking with his colleague and romantic interest Veronica Corningstone (Christina Applegate). After Veronica makes a serious statement about her career ambitions, Ron chuckles dismissively and delivers the legendary line, "I thought you were kidding," with a look of genuine, condescending surprise. The meme is widely used to represent moments of disbelief, denial, or the sudden realization that a ridiculous suggestion was actually intended seriously. It captures that awkward transition from laughter to shock when a joke turns out to be reality. Common scenarios include reacting to a coworker's bad idea or a friend suggesting a physically impossible task. Example captions include: "When the teacher says the final is 10 pages long," "Me after my boss asks me to work on Saturday," or "When your friend says they're actually going to start their diet today."