It's a name that represents FUN. In the modern day, 'Geronimo' is a word that anyone can use as a general exclamation of excitement. Whether you are BASE jumping off a tower in Kuala Lumpur, or jetty jumping into the Swan River, if you're yelling 'Geronimo,' then you're having a good time.

Why do people say Geronimo when they jump off stuff?

(The former is much more likely, for the record.) But most people have heard someone scream, “Geronimo!”, an exclamation most commonly associated with jumping out of airplanes. That's because the first person to say it did so while, you guessed it, jumping from a plane—and his name was Aubrey Eberhardt.

What is the origin of Geronimo?

Geronimo (interj.)

Adopted as battle cry by paratroopers in World War II, who perhaps had seen it in the 1939 Paramount Studios movie "Geronimo." The name is the Italian and Spanish form of Jerome, from Greek Hieronomos, literally "sacred name." One contemporary source also lists Osceola as a jumping cry.