Gung in Chinese / Japanese...

工合 is one of those Asian words that is used more in English than in the original Chinese.

Gung Ho was originally used to speak of Carlson's Raiders, a group of “Gung Ho” U.S. Marines who went on an island-hopping campaign of death during WWII.

A movie called Gung Ho came out in the mid-1940s and was later re-released in the 1950s depicting the 2nd Marine Raider Battalion, and brought this word to the mainstream.

It is still sometimes used today within the U.S. Marine Corps brotherhood to refer to a unit or group that works well together or is otherwise efficient and motivated (has good morals).

In 1986, there was a movie called Gung Ho about a Japanese company taking over an American automotive factory. They completely ignored the fact that this was a Chinese title.

It should be noted that this title actually means a condition, state, manner, or the health of something in Japanese.

Language and pronunciation notes:
Like many Asian words absorbed into common use in English, this one is drastically mispronounced. The official Romanization is “gong he” but that doesn't tell you enough. The vowel sound on the first character is like the English word “own,” now just add the g-sounds to the beginning and end. The second character is misleading, as you might think it is like the English word “he.” In reality, the vowel sound is more like the “u” in “up.”

It should also be noted that the current generation in China no longer uses or recognizes this as a common word or slogan.

Note: This can be pronounced and is a word in Japanese, though seldom used. Japanese will use a variation of "具合" instead. But still, not common.

This is a term for “teacher” that is primarily used in Wing Chun martial arts schools.

In very old Buddhist context this can be “thaumaturge” meaning a worker of wonders and/or performer of miracles.

劉家功夫 are the characters for the Lau Gar Kung Fu style of martial arts.

The romanization of “Lau Gar” comes from Cantonese. “Kung Fu” is the common romanization for English from the Mandarin “Gōng Fu” or Cantonese “Gung Fu” pronunciations.

Lau gar = Lau family.

太極詠春功夫 is the title Tai Chi Wing Chun Kung Fu.

Please note that it can be romanized in a variety of ways such as:
Tai Chi Ving Tsun Kung Fu
Tai Qi Yong Chun Gong Fu
Taai Gik Wing Ceon Gung Fu

Be sure this is the right title for what you are looking for before you order.

功夫散手 is a martial arts title.

Oddly, there are multiple ways two spell/romanize this in English, but in Chinese, it's written exactly the same.

Technically, the Mandarin romanizes as “gong fu san shou,” for which you'll sometimes see it written “kung fu san shou” (k'ung is an old romanization for a word that sounds like gong with a vowel sound like “oh”).

There is another martial arts style that spells this “Kung Fu San Soo.” I guess this was supposed to approximate Cantonese pronunciation for which the scholarly romanization is generally agreed to be “gung fu saan sau.”