Definition & Meaning of "sleaze"in English

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

"Sleaze" is a slang term used to describe a person regarded as immoral or disreputable. It comes from the earlier English word "sleazy," which originally referred in the 17th century to something flimsy, thin, or of poor quality, and later took on moral connotations of shabbiness and corruption. By the mid-20th century, "sleaze" had developed as a noun for people associated with sexual misconduct, corruption, or unethical behavior. It is derogatory, used in informal, media, or political contexts to condemn character or conduct rather than appearance.