Schmuck may refer to:
"Schmuck", or "shmuck", in American English is a pejorative term meaning one who is stupid or foolish, or an obnoxious, contemptible or detestable person. The word came into the English language from Yiddish (שמאָק, shmok), where it has similar pejorative meanings, but where its original and literal meaning is penis.
In the German language the word Schmuck means "jewelry, adornment". The etymology of the pejorative meaning is a matter of some disagreement.
The lexicographer Michael Wex, author of How to Be a Mentsh (And Not a Shmuck), writes that the Yiddish term and the German term are completely unrelated. "Basically, the Yiddish word comes out of baby talk," according to Wex. "A little boy’s penis is a shtekl, a 'little stick'. Shtekl became shmeckle, in a kind of baby-rhyming thing, and shmeckle became shmuck. Shmeckle is prepubescent and not a dirty word, but shmuck, the non-diminutive, became obscene."
According to Leo Rosten in "Hooray for Yiddish!", the pejorative use of the German "schmuck" derives from Schmock, which is closer to the original Yiddish word: and the transition of the word from meaning "jewel" to meaning "penis" is related to the description of a man's genitals as "the family jewels".
Schmuck is a surname of German origin. As a noun, it means jewelry; as an adjective, it means neat in the sense of clean, tidy, or having a simple elegance. The name is commonly seen on signs and billboards in Germany and Austria related to the merchandising of precious jewelry. The Schmuck family name has been traced to the birth of Christian von Schmuck in 1370. In 1624, an Armorial Patent, or Coat of Arms, was granted at Rattenberg by Archduke Leopold V of Austria.
There are other associated surname variations throughout Central Europe, as Hungary and Romania, including spelling variations of Szmuk in these countries.