People who take pictures of themselves smoking a cigarette and posting it on social media with the sole intent of trying to look badass. Typical comment chains of smoke selfies play out like this:

Friend: What's that in your hand?
Uploader: A cigarette. I'm so frickin' badass.
Friend: Naughty naughty does your mother know?
Joe has uploaded yet another smoke selfie. That's his 5th one this week!
by Lefty Power 123 March 29, 2016
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