Here's a breakdown:
* Origin: The exact origin of the term is debated. Some believe it came from a character named Mary Jane in a 1930s comic strip called "Mandrake the Magician" who was known for her love of marijuana. Others believe it originated from a brand of cigarettes called "Mary Jane" that were popular in the early 20th century.
* Usage: "Mary Jane" is a widely used slang term for marijuana, especially in the United States. It's often used in a casual or humorous context, though it can also be used in a more serious context depending on the situation.
It's important to note that while the term "Mary Jane" is widely used, it's not the only slang term for marijuana. Other common slang terms include weed, pot, dope, and ganja.