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Since the 1970s, as far as anyone can determine, multi-colored bandanas have been worn by some gay men to explain what sorts of preferred sexual activities and fetishes they pursue.

For example, if you seek painfully “hands-on” encounters (fisting, your favorite!), wear red. Need to pee on a total stranger? Wear yellow. And if you like hearing about these sexy-coded things while looking at half-naked men whose acting skills leave much to be desired, watch the below video (via Towleroad).