Something you say when you want someone to leave you the fuck alone. It is derived from the word "fantastic" which is something you may expect after asking the semi-retarded question "How are you doing?"
Annoying Person: nyee, *snort* Hows it going, my buddy?
Non Pervert: Rapetastic!
Annoying Person: What?!
Non Pervert: The community is building an elementary school exactly 500 feet from my house!
Annoying Person: uhhh... see ya
Non Pervert: Rapetastic!
Annoying Person: What?!
Non Pervert: The community is building an elementary school exactly 500 feet from my house!
Annoying Person: uhhh... see ya
by Biblebasher4jesus November 29, 2010