An adjective used to describe someone who is kind, caring and funny. A Dibbs is an all round nice guy and who any normal person likes. A Dibbs has lots of friends. Anyone who doesnt like a Dibbs is a fassie, faggot and probably has sex with their family. Using the word Dibbs to describe someone is offering the highest praise and should not be used lightly.
That guy is such a Dibbs, i.e he's proper safe.