Some local dialects add phrases or words that add no meaning to the sentence or question.
Minnesota speakers add 'now'. 'Who was that guy died in Duluth, now ?'
Irish speakers add 'so I am/was/etc'. 'I'm going to be on telly, so I am.'
Jewish speakers add 'already'. 'I'm single; so get over it, already.'
Scots add 'd'ye ken (know)'. 'He died yesterday, d'ye ken.'
What do I call these little snippets of language that are added, locally ?
I don't accept that they can be called 'catch phrases', which are individual, not a part of a local dialect.