Moonbase

A vagina that is so barren it cannot support any life due to the constant assault by penile beings.

A base established on a moon. In particular, the two bases established by the Autobots on the two moons of Cybertron prior to Transformers: The Movie. Given the highly original names "Moonbase One" and "Moonbase Two" (!!), these were to be the base of operations for recapturing Cybertron from the Decepticons. They were meant to be secret, but the Decepticon Laserbeak was able to infiltrate them. Before any attack could be launched, the moons were devoured by Unicron.

A Rather Fetching Ethnic Male Of The Human Species

originaly a small alcove under stairs in bournmouth university, it is now used as a tearm for attractive men.

you see someone 'visually pleasing' walking down the road-and if youre feeling bold you can either shout 'moonbase' in their direction or say to someone 'oh! i was walking down the road and i saw a proper moonbase' provided they know what it means.
the phrase originated on the south coast of england.

A free game produced by NASA to be downloaded and played from Steam. The objective of the game is to co-operate with your teamates and preform various tasks, such as repairing your base after a meteor storm.

However, this is pointless, due to the text-to-speech option, which will let everything you and others say be translated into text to speech. Thus, in mostly all of the lobbies, you will see people saying 'JOHN MADDEN' or 'AEIOU', and will not get the joke untill you turn text-to-speech on. When joining a server, there's an unspoken rule at least ONE person will be spamming 'AEIOU' or 'EBAY' in the monotone of stephen hawkings/microsoft sam.

The sexually-charged act of defecating from one anus to another, back and forth to stimulate prostates of both participants. While not strictly a homosexual sexual act, it is more common in gay men than straight couples.