Top Definition
Yet another colloquialism for being a male homosexual.

Derived from the phrase; "Men are from Mars, Women are from Venus". The reasoning for the term is if both planets were only populated with either sex they would then have to be gay.

'Marsy' has then been coined for obvious reasons
That dude Ross is sooo marsy!

Are there any Marsies in this battalion?
by how many names have been taken October 19, 2010
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