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Extremely camp music, and a reference to stereotypical gay men who work out and often listen to it whislt doing so.
"Ooh, Simon, in the navy is on, lets pump some iron"
"Oil me up Paul, it's gay buff hour!"

"This sexy foam party is fab!"
"But what we need Simon is some gay buff tunes"
"You're right on there Paul, Oil me up and i'll get that mix tape I made you"
by Paul Fallon August 20, 2008
a man who is very buff and in great shape, comes from how gay people work out as much as they do.
me:"jake won CIF"
Brian:"well look at him he's gay buff"
by aa March 07, 2005