AstroTatting 

The act of smoking marijuana, and then watching a muted version of the 2d Japanese "Astroboy" cartoon, while listening to the music of Ratatat simultaneously. The music and the cartoon eerily tend to sync up, no matter the start time of either.

Note- Most effective when performed as a night cap after a thorough night of drinking. In other words, a "passive" weed activity.

Dude, you guys were up laaaaate last night!

-Yeah, well we didn't get home til four and then we were AstroTatting for at least an hour.

AstroTatting by AstroBoy39 June 15, 2010

astrobating 

masturbating in space. Few have had the chance to engage in this exotic activity.

"Houston we have a problem."
"what is it???"
"i was astrobating and my lunar module got caught in my zipper"

astrobating by TheAstrobater February 21, 2010

Astronauting 

When you stick your thumb up the ass and your middle finger up the vagina of a woman and toss her, off into a pool, down a bowling alley, or into the air in general. "Up, up and away!"

Astronauting was Joey's favorite activity until he lost his thumb in the war.

Astronauting by Doctor Rospunknick April 13, 2013