I joined a team where everyone had been there for a while and were friends. They had jokes and banter constantly and I didn't understand the in-jokes, the refer

I joined a team where everyone had been there for a while and were friends. They had jokes and banter constantly and I didn't understand the in-jokes, the references to jokes that referenced their past history and I felt isolated and did not enjoy being part of the 'team'. I reacted by looking to move teams.