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1.
Doing The Astro is defined as whatever you do in secret when no one's around. Everyone does The Astro.
I bet Jimmy's doing The Astro right now. He didn't come to the party.
by You just got yab'd June 06, 2009
 
2.
1. The act of dancing without music

2. The act of dancing with no one around, with or without music
Look at that guy, he's doing the astro!
or
I bet Jack does the astro at home.
by Travis and the Bullfrogs October 07, 2008