Someone whos penis is so big, when it gets an erection, it seems to go into space, like an astronaut.
by His Airness Dos June 12, 2006
Get the cock astronautmug. Taco Terry met us at the strip club and walked around the club with a boner all night long, what an astronaut cock.
by Peachez-757-23336 November 29, 2017
Get the astronaut cockmug.