A phrase used to describe an American citizen who willfully takes advantage of another person such as a husband or friend for the sole purpose of relocating to a foreign country eg. Finland for the willful intent to leach and pillage the local social system. American Gypsies may impersonate a loving wife, student or any number of discrete charades. These individuals can rarely be seen working, although in some cases they are forced to start black market businesses due to hunger or lack of personal hygiene products. Like Roma Gypsies, you can always expect a seeming reasonable story to explain their begging although this is usually completely made up or stolen from a classic movie plot.
Person one: I see that American chick with a new guy every two weeks. I thought she was married to that Awesome American guy.
Person Two: She's on a romantic holiday with social department. Oh great, typical American Gypsy..