In a time when many comedians told elaborate anecdotes, Youngman’s comedy routine consisted of telling simple one-liner jokes, occasionally with interludes of violin playing. These gags depicted simple, cartoon-like situations, eliminating lengthy build-ups and going straight to the punch line. He was known as the King of the One Liners, a title bestowed upon him by columnist Walter Winchell. A typical stage performance by Youngman lasted only fifteen to twenty minutes, but contained dozens of jokes, delivered in rapid-fire fashion.
Youngman's wife, Sadie Cohen, was often the butt of his jokes ("My wife said to me, 'For our anniversary I want to go somewhere I've never been before.' I said, 'Try the kitchen!'", or "my wife's cooking is fit for a king. (gesturing as if feeding an invisible dog) Here King, here King!" Also, "Last night my wife said the weather outside was fit for neither man nor beast, so we both stayed home.") but in reality the two were very close, with Sadie often accompanying her husband on his tours.
Youngman remained married for over sixty years until his wife's death in 1987, after a prolonged illness. While she was ill, Henny had an ICU built in their bedroom, so she could be taken care of at home, rather than in the hospital (Sadie was terrified of hospitals).
Henny explained the origin of his classic line "Take my wife, please" as a misinterpretation: in the mid-1930s he took his wife to a show and asked the usher to escort his wife to a seat. But his request was taken as a joke, and Youngman used the line countless times ever after.