A bit gag is a gag-like device used in certain human sexual practices. It bears a passing visual resemblance to the bit used in a bridle for a horse, and much of its sexual value stems from fetishistic symbolism in Human pony play.
It consists of a bar that is held in place in the wearer's mouth by straps and other hardware. Unlike the metal bit of a horse's bridle, the bar of a bit gag is usually a soft rubber cylinder. It is ineffective as a gag, at least insofar as preventing speech is concerned, although it will make it somewhat more difficult for the wearer to produce coherent speech. Occasionally reins are attached. Because of the possibility of injury to the lips, the bit gag is not really suitable for rough play.
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