Top Definition
An astronaut of the male persuasion.
"Did you know there have never been any women on the moon? I'm going to become an astronaut and go to the moon, that will be a punch in the testicles for all those manstronauts."
by Elle The Space Explorer March 10, 2007
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.