look up any word, like blumpkin:
 
1.
right on

1. Positive response
2. Yeah, dude (blowoff answer)
Billy: Yo, great job! You only lost the race by like 25 feet!
Tiny Tim: Rightio, Bill. You're so funny (not!)
by The Evster May 21, 2006
 
2.
Even though man may assume rightio means oh right, it actually means FUCK OFF CUNT.
Guy 1: Can you look up training drills tommorow?
Guy 2: Rightio
by tl96 March 05, 2011