This hand gesture is universally known as the “fig sign” (mano fico in Italian). Depending on the culture, it carries drastically different meanings:

• “I Got Your Nose”: In Western cultures (like North America and Northern Europe), adults use this gesture in a playful game with young children to pretend they have “stolen” their nose.
• Obscene / Insulting Gesture: In Turkey, Greece, Russia, Slavic countries, and parts of the Mediterranean, it is a rude gesture equivalent to showing someone the middle finger. It expresses defiance, rejection, or a vulgar refusal (meaning “you get nothing” or “screw you”).
• Protection Against the “Evil Eye”: Historically, in ancient Rome, Italy, Brazil, and Portugal, it served as an apotropaic charm—a good luck symbol used to ward off jealousy, bad luck, and evil spirits.
• Ancient Origins: Dating back to classical antiquity, the gesture originally had an explicit phallic meaning, which is why it was thought to drive away evil energy or serve as a raw insult.

Like many social media clickbait graphics, it promises a single “deep secret,” but in reality, its meaning depends entirely on where in the world you make it!