Definition

A self-portrait photo taken with your own device, usually at arm's length with varying degrees of flattering angles, that has transformed humanity into a species of amateur photographers obsessed with documenting our own faces. Once a novelty, now so ubiquitous that even the Pope participates without irony.

Example Usage

Let me take a quick selfie before we leave—the lighting in this restaurant is actually perfect.

Source: Urban Dictionary (https://www.urbandictionary.com/define.php?term=selfie&defid=7761377)