The collective behaviour and influence of a group, made up of it's myths and stories, dominant members, attitudes, interests, repsect or dislike for one another and others, gossip, rituals, initiations, style and language. Often the source of rumour and speculation, or where discontent is first voiced, acceptance within canteen culture is to be bonded to the group in more than just membership of the official team. Can be a good and bad thing within an organisation, generating or destroying morale. Origin - British Police Forces circa mid 1990's, now widely accepted as part of most organisations.
"Although now a member of the team, he was not part of it's canteen culture"