" closed-circuit "

 [ "closed circuit" ]

1: confidential; inside information only between tow parties

  * e.g.,  ... "let's keep this info closed circuit, at least till we hear more from the bmoc." 

 [ "Closed Circuit" ]

1: When a consenting adult human with a penis double fists anally and vaginally a consenting adult human with a vagina while the fistee blows the fister. i.e 69ing but with consensual double fisting ;)

  * e.g.,  ... Trenton: Did you hear that Tammy and I completed a closed circuit last night? Jake: Really?? You got both fists in there? Wow man I’m impressed. Trenton: It took a lot of prep but it was worth it at the end, all out of lube though… 

 [ "Closed Circuit" ]

1: A group of guys with their penises in each other's assholes in such a way that the last man's penis is in the first man's asshole, creating a ring.

  * e.g.,  ... Guy 1: Hey man me and some friends are getting together this weekend for a closed circuit. You in? 

 [ "closed circuit slut" ]

1: Closed circuit slut;

  * e.g.,  ... She's been fucking the same 7 guys exclusively since middleschool, talk about a closed circuit slut. 

 [ "closed circuit slut" ]

2: Someone who fucks a handful of people exclusively but haves their own place/independence.