Top Definition
The term for a person who is a mix between a douche and an astronaut.

One who is such a huge douchebag the atmosphere of earth can not contain them and they probe the outer reaches of the douche-galaxy
"Ted was being a douchenaut at the party last night when he pulled his dick out."

"Look at that douchenaut playing hacky-sack."
by Nicholas the What April 22, 2008
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