Cane	:=	Usually a 15-45 inch long stick used for spanking techniques
Catheter	:=	Plastic tube which is inserted into urethra
CBT	:=	Cock and Ball Torture - Intense stimulation of the male sex by bondage, needles or clamps
Cockring	:=	A toy used around the male genital. It's usually a leather-band / or a metal / plastic ring which is placed at the base of the penis / (& testicles) to allow the blood to flow in, but not out. Which enables the man to uphold an erection for a longer time.
Collar	:=	Worn to denote submissiveness or slavery to a particular top
Collaring	:=	Ceremony or ritual by which a submissive becomes bound to his or her top. A Collaring represents a serious commitment between the players
Coming out	:=	Also Outing. Public or private Outing. To make your kink public. Mostly used in terms of homosexuality.
Corporal Punishment, CP	:=	Punishment by beating. The term CP sometimes implies a more vigorous beating than "spanking", but the two are often used interchangeably.
Contract	:=	A written agreement about the rights and duties of the D/s partners. Those contracts do not have any meaning in terms of law, but they are often used to define the relationship.
Cupping / Suction play	:=	Suction of the skin produced by the use of small glass cups (medical toy) on the body. Types of cups: vacuum cups, fire cups. Be careful as with too much suction you can create visible "hickeys". Use them on breasts, buttocks or wherever you'd like to feel these unique sensations. Do not use these on any one area for more than 5 minutes each time to avoid possible skin irritation or damage such as bruising. The Chinese used suction devices for therapeutic use like acupuncture and acupressure.
Crop	:=	Riding Crop used for spanking techniques
Crossdresser, CD	:=	Person who enjoys wearing the other genders clothes. A fetish mostly found by men.
Cutting	:=	Involves being cut with a knife or scalpel. Part of the so called "Blood games". See also "scarification"