Person who acts in a disreputable manner
Shyster (; also spelled "schiester", "scheister", etc.) is a slang word for someone who acts in a disreputable, unethical, or unscrupulous way, especially in the practice of law, sometimes also politics or economics.
Etymology.
The etymology of the word is not generally agreed upon. The "Oxford English Dictionary" describes it as "of obscure origin", possibly deriving from a historical sense of "shy" meaning disreputable.
The "Merriam-Webster Dictionary" deemed it probably based on the German "Scheißer" (literally "shitter", i.e. "defecator"). A book published in 2013 traces the first use back to 1843, when scammers in New York City would exploit prisoners by pretending to be lawyers. These scammers were disparagingly referred to as "shisers", meaning "worthless people" in British slang, which in turn was originally derived from the German "Scheißer".
Various etymologies have suggested an antisemitic origin, possibly associated with the character of Shylock from Shakespeare's "The Merchant of Venice", but there is no clear evidence for this. One source asserts that the term originated in Philadelphia in 1843 from a disreputable attorney named "Schuster."
The United Kingdom's Advertising Standards Authority (ASA) ruled that while "some viewers may find the term distasteful," a television advertisement that used the term in a derogatory context did not "cause serious or widespread offence" according to the CAP Code. When contacted by the ASA, the Board of Deputies of British Jews stated that they did not have concerns with the advertisement's content.
References.
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