Schmuck is a Yiddish word for a jerk or for a foolish or contemptible person.(noun)
A loud obnoxious guy who everyone dislikes and makes fun of is an example of a schmuck.
See schmuck in Webster's New World College Dictionary
Origin: E Yiddish shmok, lit., penis < Old Pol smok, grass snake, dragon
See schmuck in American Heritage Dictionary 4
Origin: Yiddish shmok, penis, fool
Origin: , probably from Polish smok, serpent, tail.
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