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2 definitions by Dr. Rick

 
1.
What happens after consuming enough DXM (the cough-suppressant found in Robitussin and knock-offs) to induce a state of ball-tripping. Going to the Moon results in seeing things when eyes are closed, walking around like you're a dinosaur, and claiming "I'm on the Fucking moon"
After consuming a bottle of Wal-Tussin, I'll be Going to the Moon
by Dr. Rick February 04, 2009
 
2.
Among the common definitions, one who partakes of DXM (the cough-suppressant found in Robitussin and knockoffs) often. A reference to the phrase 'Going to the Moon'
God, he doesnt drink or smoke, but with all the tussin he gulps he's a regular astronaut.
by Dr. Rick February 04, 2009