When you and a mate, catch a joke or moment within a group discussion that no one else picked up on. You both are aware of each other getting the joke or moment so enable to confirm that beautiful bond you or your friend simply use code words that have already been established such as "Kachow", "Kachinga" etc. Followed by "Bartholomew Stevenson".
Amongst a chill squad discussion some guy says "Music is just Wiggly Air". You Turn spot your mate... "Kachow", "Kachinga"..."Bartholomew Stevenson".