Any girl that is not African American or any descent of any African culture that puts on an " I'm black too act' to become more appealing to people who are directly embedded within the African or Afro-American culture. Most commonly this act is mostly used for a woman of non color as a dating tool to relate to a black man.
Definition by: Samuel L. Prewitt Jr. Dayton, Ohio
Here come Amy with her Beckeisha act knowing she usually act like that.