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The act of preforming oral sex on yourself by pulling both of your legs over your head. Contorting your body into the shape of a French horn with your feet being the mouthpiece and your head being the bell of the horn.
"Did you hear about Jeff trying to "Tooting your French horn?!"
"Yeah, I always knew he was lonely, but damn..."
by x405xarmsdealer May 29, 2013