I came across the word shpritz in the following sentence of a New York Times article (May 12th) titled, "At 100, Still a Teacher, Quite a Character":
At 100 years old, Ms. Kaufman is still shpritzing jokes, Jewish and otherwise, which is in her genes. Her grandfather was the great Yiddish storyteller Sholem Aleichem, a writer who was able to squeeze heartbreaking humor out of the most threadbare deprivation and wove the bittersweet Tevye stories that became the source for “Fiddler on the Roof."
As I am unfamiliar with the word shpritz, I consulted several English dictionaries. Neither Cambridge Dictionary nor Merriam Webster Dictionary had entry of this word. Readers English Japanese Dictionary defines it as
vt. attack, slander. n. a bit.
Urban Dictionary defines it as
A word of german language origin - similar meaning to that of semen, or spunk. Now used in popular English to describe the act of being impressed, aroused, happy, or ecstatic, upon seeing or tasting a person/substance/product. More commonly used to describe uncontrollable release of excitement or joy
However, neither the definition from Readers English Japanese Dictionary nor Urban Dictionary seem to me to apply to the phrase "Ms. Kaufman is still shpritzing jokes, Jewish and otherwise."
Though I think there’s good reasons for picking up the word, shpritz, what does it mean exactly? Is it a "popular" English word as Urban Dictionary asserts?