A more thorough explanation:

Definition: Alien Amy is a term used to refer to an alien friend. An alien is a person who lives in a country but is not a citizen or subject of that country. In the United States, an alien is someone who was born outside the country, is subject to a foreign government, and has not been naturalized under U.S. law.

Example: If a person from Mexico comes to live in the United States but has not become a citizen, they are considered an alien. If that person becomes friends with someone in the U.S., they could be referred to as an alien friend or Alien Amy.

This term is used to distinguish between aliens who are considered enemies (alien enemies) and those who are considered friends (alien friends). It is important to note that the term "alien" can have negative connotations, but in this context, it simply refers to a person's legal status in a country.