1.) An obviously insecure person who CONSTANTLY imitates and copies other people (usually a friend) to the point of obsession. May be manifested in speech, style of dress, lifestyle, etc.

2.) A self-loathing person who is CONSTANTLY emulating someone that they hold in high regard, as if attempting to BECOME THEIR SHADOW, often prompting you to want to yell: "Get your own freaking life!!!"

**Word of Caution:
DO NOT try the above said screaming on a SHADOWSURFER. Although annoying, the SHADOWSURFER is obviously emotionally unstable and may be potentially dangerous. You never know if she has a million little pictures OF YOU cut up and pasted on her basement walls...better to be safe than sorry.