Not necessarily, it depends on which part of the world you're at. In most of Taiwan, parts of China, parts of Malaysia and parts of Singapore, 'CB' serves as an acronym for 'Chee Bye' , which actually means cunt or pussy. ✌ https://www.google.com/amp/s/www.urbandictionary.com/define.php?term=cheebye&=true
Better ask. from what i have read so far since joining the community, people here are extremely respectful... probably due to our deep gentleman nature!
lol. There are so many acronyms in printed text these days it's hard to know what the hell people are talking about.
Around here, CB, especially when followed by a number (like 3000) also commonly refers to the CB-x series of plastic chastity cages, one of the most popular styles especially as a beginner cage; see e.g. https://cb-x.com/