I'm not sure of the exact date as it was probably a gradual thing that spread across the English speaking cultures. I would say it was around the 1960's because before that, dick was not a derogatory term.
It used to be that a dick was an investigator who tried to solve crimes or find out information for clients. A private investigator was also known as a private dick, for example. The famous newspaper comic strip character Dick Tracy is a good example of this in the pop culture of America.
Dick also used to be a popular nickname for people named Richard. I have no idea how that connection happened but it did. My great uncle Richard went by the name of Dick for most of his life, for example. A famous guy with the name you may have heard of was Dick Vandyke, the actor. Another actor was Dick Vanpatten. Some people called President Richard Nixon "Dick" too.
More recently there have been famous people like Dick Morris, the political strategist. Due to the changing usage of the word, the name Dick has become less common than it used to be.
One derogatory term describing a lowlife is "scum."
The term "spic" is a derogatory and offensive slur used to refer to Hispanics. It is considered highly derogatory and should never be used.
No.
It is a slang term for penis. It is also a person's name, frequently a shorter version of Richard. It is also a derogatory name used to deride another.
"Richard Cranium" is a play on words, where "Richard" is a slang term for "dick" or "penis" and "cranium" refers to the skull. So, the term is a humorous and derogatory way of calling someone a "jerk" or "idiot."
Absolutely not.
The reason the term hyphenated American is derogatory is because it means that an American with a foreign birth displays allegiances to that foreign country. The term hyphenated American was first published in 1889 and was considered a derogatory term by the early 1900s.
The term "fatso" is a derogatory term for someone who is overweight.
No, "madam" is not inherently derogatory. It is a respectful term used to address or refer to a woman, particularly in a formal or polite context.
An aminadab is a derogatory term for a Quaker.
Fresh off (the) boat. Derogatory term for immigrants.
It is a derogatory term for a lazy person and the term should be avoided.