Definition & Meaning of "shrek"in English

What is the origin of the term "shrek" and how is it used?

"Shrek" is a slang term used to describe a person considered ugly, monstrous, or repulsive. It comes from the Yiddish word shrek meaning "fear" or "fright," and was popularized in English through the DreamWorks animated film Shrek (2001), whose main character is an ogre. The term draws on the ogre's grotesque appearance to label someone as physically or socially repulsive. It is informal and derogatory, often used humorously or insultingly in casual, online, or social contexts. It is moderately to strongly offensive depending on tone and intent.