Top Definition
Someone who boldly ventures into the Unknown But Most Certainly Gay.
Jim: After I got my Ph.D in biology, I started working with the company that makes enzyte. We're developing new natural male enhancement techniques.

Bob: Dude, you're such a homonaut.
by ShhI'mHuntingWookiees August 13, 2009
1 more definition
5 Words related to homonaut
Someone who is not smarmy!
"Ahh, shit that homonaut is coming, lets roll!"
by DJ Devlin March 11, 2004

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