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
Get the mug
Get a homonaut mug for your bunkmate Callisto.