Moonshine

noun

1. The light of the moon; moonlight.
2. High-proof alcohol (especially whiskey) that is often, but not always, produced illegally.

   "They watered down the moonshine."

3. Nonsense.

   "He was talking moonshine."

4. A branch of pure mathematics relating the Monster group to an invariant of elliptic functions.
5. A spiced dish of eggs and fried onions.