What Does Selfie Mean?
A selfie is an informal term used to describe a self-portrait photo that is uploaded and posted on social networking sites. The subject usually takes the picture at arm's length. Another method used to take a selfie is to take a picture of one's reflection in a mirror.
Selfies are a way for a subject to control how he or she is presented online, but when overused, they are often viewed as narcissistic.
Techopedia Explains Selfie
Some people use filters or Photoshop to hide physical flaws and gain likes or positive comments over social media. They also may be used by subjects to document daily events and activities.
However, as a result of some negative reaction to selfies, parodies have become common. In this case, the subject attempts to look as unattractive as possible by making a funny face or striking an unflattering pose.