Feeling undue awareness of oneself, realizing you are being self conscious, saying "fuck it" to being embarrassed or uncomfortable, owning it and growing confidence in the process.
No one cares what you look like, stop being self confucktious right now!
A Self-Inflicted Flashbang is when a male is masturbating and he claps his own ears as hard as possible. The stream of seminal fluid is directed at his eyes.
“Hey Toddwanna ho out to lunch?”
“What? Sorry, I committed a Self-Inflicted Flashbang earlier.”
A person that strokes their own ego constantly by trying to build themselves up to others buy bragging about what they have and how great they are at everything.
That dude is a straight up self-fluffer that never stops bragging about how he is the big baller that has had ever woman in this town.