Cock and ball torture(CBT), occasionally known aspenis torture,dick torture, ormale genitorture/male genital torture, is a sexual activity involving the application of pain or constriction to thepenisortesticles. This may involve directly painful activities, such asgenital piercing,wax play, genitalspanking, squeezing, ball-busting, genital flogging,urethral play,tickle torture,erotic electrostimulation, kneeing or kicking.The recipient of such activities may receive direct physical pleasure viamasochism, or emotional pleasure througherotic humiliation, or knowledge that the play is pleasing to asadisticdominant. Many of these practices carry significant health risks.

Similar to many other sexual activities, CBT can be performed using toys and devices to make the penis and testicles more easily accessible for attack, or forforeplaypurposes.

Denkianma (電気按摩) (lit. "electric massage") is a popular Japanese prank played between two people where one person puts their foot into the genital area of the other and shakes it in a vibrating motion.[12][13]Often this is done by grabbing the other person's feet, raising them, and then placing one's own foot on theircrotchand vibrating it. This is often done between school aged boys as a prank similar tokanchoand could be seen by a western audience as a type of bullying. In 2006,Frito Layreleased a special,Taitsukun-themed edition ofDoritoschips, that referenced denki anma.[14][15]