1) Language of Ireland 
Shelta ə is a language spoken by Irish Travellers, particularly in Ireland, but also parts of Great Britain. It is widely known as the Cant, to its native speakers in Ireland as Gammon and to the linguistic community as Shelta. It was often used as a cryptolect to exclude outsiders from comprehending conversations between Travellers, although thi...
Shelta was the name of the old British tinkers' slang language.