Widely known as Irish gypsies residing in Ireland and also in the UK. My Irish nan used to tell my mum that if she was naughty one evening that she would "leave her outside for the tinkers", as it was said that they stole children.
Another meaning of tinkers is esctasy
"got any tinkers?" or "tinkers, tinkers, anyone wanna buy any tinkers?" as some drug dealers in nightclubs in the South East of England would say.