Top Definition
1.The Simultaneous Space docking between two women. (See Space Dock)

2.When Two women do an inverted sitting position and shit in each others pussy.
Brenda: I Want to do something different.
Butch: Lets do a cosmonaut!
Brenda: I hope you ate your fiber.

Lets Do The Cosmonaut tonight!
by Senior Pants Party November 03, 2006
5 Words related to the cosmonaut

Free Daily Email

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

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×