6-7 and the 'secret' language of kids - BBC Bitesize

Have you noticed your teens – or younger kids - laughing and doing a hand gesture every time the numbers 6 and 7 come up in sequence? Any idea what they’re actually saying or laughing at? As a parent do you need to understand teen-speak, and should you ever use it? Bitesize parenting has delved into the world of teen slang to answer some of those questions.