Call Girl - Outcall provider, usually implies agency.
Cash and Dash - ROB who takes the money and runs
CBJ - Covered Blow Job (oral sex with a condom)
CC - Roman Numeral for 200. Roman numerals sometimes used for fees.
CC - Credit Card
CC Rider - Full service provider costing $200 or less.
CD - Cross-dresser: transvestite, a person, and especially a male who adopts the dress and often the behavior typical of the opposite sex especially for purposes of emotional or sexual gratification
CDS - Covered Doggy Style
CFS - Covered Full Service (sex with condom)
CG - Call Girl
Chump - A man who gives his money and/or his attention to women without getting any pussy in return. Largely a phenomenon experienced by American men when dating American women. Don't be a chump!
CIM - Cum in Mouth
Civilian - A woman who makes herself available for sexual encounters but not for financial gain. May be less discreet than a provider and more interested in a relationship.
Clockwatcher - A term for a provider who counts the minutes until the session is over.
CMD - Carpet Matches Drapes (means her natural hair color)
CMT - Certified Massage Therapist. A professional masseuse.
COF - Cum on Face
Collar and Cuffs - Pubic hair matches natural hair-color (redheads, blondes)
Completion - Orgasm. e.g. She gave a bareback blowjob to completion.
Cover - Condom
Covered - Various measures, such as the use of condoms or dental dams, are taken to avoid diseases (as AIDS) transmitted by sexual contact. (e.g. Covered Blow Job means a condom was used.)
CG - Cow Girl, Girl on top facing you.
Crime scene action - Sexual activity during her period.
Cruising - Looking for prostitutes while driving.
Cups of Coffee - Releases, Orgasms