We shouldn't be disrespectful casting aspersions.
The proper term is: Schmuck
Schmuck, or shmuck, 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, where it has similar pejorative meanings, but where its literal meaning is a vulgar term for a penis.
ex:
(I think he may even have the term trademarked)