To not only be overlyfascinated with oneself, but to also inject conversations with large doses of sardonicism.
"Look, i know you are utterly self-obsessed but do you think you could take your sarcasm some place else? Your narcastic attitude isn't welcome here, you rat bastard!"
1. making fun of narcissistic people
2. trying to hide narcissism by acting sarcastic
3. misspelling 'narcissistic/narcissism'
"OH MY GOODNESS I'M SoOoOOOOOOOOOoOOOOooooooooo GOOD LOOKING!!!" says the girl while sarcastically looking at herself in a mirror for the tenth time in the past hour.
"Stop acting narcasistic!"