There is a movie dialogue where a man from the future tells his friend in the past:"I want you to remember this word, okay? It's kind of like a code word: Yahoo

There is a movie dialogue where a man from the future tells his friend in the past:"I want you to remember this word, okay? It's kind of like a code word: Yahoo. Can you remember that?" It ends up making his friend rich in the future. The movie is Frequency(2000)