Crouching Tiger Hidden Dragon in Chinese / Japanese...

臥虎藏龍 is the movie title of the Kung Fu epic that was very popular in the west a few years back.

This is a re-ordering of an ancient Chinese proverb that refers to undiscovered talents.

The movie was one of the most popular Chinese foreign films to ever debut in the USA but received a lukewarm reception in China.

Note: This can be pronounced in Korean, but it's not a commonly used term.

The meaning of 藏龍臥虎 is that both the tiger and dragon have amazing talents, but if they are out of view, you may not have discovered them.

This old Chinese idiom/proverb is appropriate for someone with an amazing ability that keeps that ability hidden.

You might think this title is in reverse, but actually, this is the original Chinese proverb.
The movie Crouching Tiger, Hidden Dragon, popularized this alternate version.