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1.
When a person usually only enjoys musical artists or bands in which the singer is of the same sex as said person.
Guy1: What kind of music do you like?
Guy2: I like bands that have guy singers, not chick singers, regardless of how hot the female singer may be.
Guy1: You're musically gay.
Guy2: And damn proud!
by FONtheCON April 13, 2008
 
2.
A man who listens to music that would be considered solely for females or for peoples of a homosexual nature, while not actually taking it up the arse.
Liam: "woah man, Andy has george michael and tina turner albums on his ipod!"
Andy: "lay off butt-nugget i'm just musically gay"
by The Jizzmeister March 01, 2009