Consider the question. The term Doodle first appeared in English in the early seventeenth century and is thought to be derived from the Low German (a language close to Dutch) dudel, meaning "playing music badly" or Dodel, meaning "fool" or "simpleton". The Macaroni wig was an extreme fashion in the 1770s and became contemporary slang for foppishness. Dandies were men who placed particular importance upon physical appearance, refined language, and leisure hobbies. A self-made "Dandy" was a British middle-class man from the late 18th to early 19th century who impersonated an aristocratic lifestyle. They notably wore silk strip cloth, stuck feathers in their hats, and bore two fob watch accessories simultaneously (two pocket watches with chains) -- "one to tell what time it was and the other to tell what time it was not". This era was the height of "dandyism" in London, when men wore striped silks upon their return from the Grand Tour, along with a feather in the hat.

Answer this question based on the passage: in the song yankee doodle what does macaroni mean?
What is the step-by-step reasoning process to arrive at the answer: an extreme fashion in the 1770s and became contemporary slang for foppishness?
This is the relevant information: The Macaroni wig was an extreme fashion in the 1770s and became contemporary slang for foppishness.