Ear Sex

Is when you stick it in someone's ear, a great way to engage in sexual pleasure without the worry of breaking any vows and remaining abstinent. How you fit it in the ear is beyond me but you know how good cotton swabbing the shit out of your ear can feel.

Another form of ear sex is made by a band called USS, Canadian based.

Ubiquitous Synergy Seeker (USS) is a musical duo that began working out of Parkdale,^[1] a neighbourhood situated in the west-end of Toronto, Ontario, Canada. The band is composed of vocalist, guitarist and erhu player Ash Buchholz (aka Ashley Boo-Schultz) and turntablist and hypeman Jason Parsons (aka Human Kebab).
The USS sound is a mixture of drum and bass beats, grunge-like guitar riffs and 2-step rhythms. "We like to call what we do the campfire after-party," Buchholz said. "It's like you're at Nirvana Unplugged but there's a drum and bass party and glow sticks all around you."^[2]

They just happen to be coming to the University of Waterloo for a show, pretty stoked.