Nonce

British slag for child sex offender

Originated from HMP Wakefield which is one of Europes most secure prison. The inmates charged of sex offences (offences against woman and children) were kept in Solitary confinement and outside their cell would be a board with N.O.N.C.E which stood for “Not on normal courtyard exercise” due to their risk of being attacked by other inmates

Be careful of him, his a nonce