Top Definition
A person who pioneers a new style or Swagga.
That breh's a true Swagganaut.
I am a Swagganaut.
by Jayceon M October 15, 2008
An astronaut with swagger and a pocket full of YOLO's.
"Swagganaut James bounced around the moon dunes in a pimped out lunar rover - complete with satallite radio and a large dish."
by -s-l-e-e-p-w-a-l-k-e-r- January 27, 2013
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