"So he can juggle. What's the kuntz? Anyone can."

"The Magician said 'Kinderlach, I have vun more kuntz!'"

"What’s the kuntz in drinking different color poweraid from winded bottles or marshmallow fluff from toothpaste tube." (source)

"The kuntz to winning this game is to protect pieces before going on the offensive." (Weiser)

"He stayed indoors when everyone else took a walk on this beautiful day. He has his own kuntz going." (JPS)