The 'I Know Kung Fu' meme originates from the 1999 sci-fi blockbuster The Matrix. In the scene, Neo (played by Keanu Reeves) undergoes an intense data upload process where martial arts techniques are programmed directly into his brain. After waking from the digital download, he utters the iconic line with a look of realization. Since then, the phrase has become a universal internet shorthand for the feeling of suddenly mastering a new skill or understanding a complex concept. It is often used humorously to describe situations where someone gains a tiny bit of knowledge and immediately acts like an expert.