Simply a person that is either on a competitive cheer team or represents their school's cheerleading squad.
can be of any race or origin or any size.
although it is rare to see an obese cheerleader because dancing combined with gymnastics and stunting usually will help any person get in shape.
the typical "preppy ditzy slutty girl" label doesn't apply. i know plenty of girls that cheer and get great grades, dress different from abercrombie&fitch and all the other labels, and don't live to please guys in innapropriate matters.
I am a cheerleader on a competitive team at a local gym, but I do not cheer for my school.