Ae of the “popular/fowk linguistic” criteria yaised tae sinder a dialeck frae a langage is twa-wey unnerstaun-abeelitie (mutual comprehensibility)
“Och A can git a bittie Scots gin ye speak slaw-like, canna be a ‘rael’ langage, lol”. Yes aw ken whit A mean.
Onieweys here’s American vs Scottish played for laughs. BTW Phil Goodlad is having a bit of fun here drifting between Scottish English spoken quickly with an accent and his native Shetland Scots.
But Phil the Shetlander isna quite correck tho, A first lairnt the Scots jist doon the coast fae Muirfield, in Dunbar. An as a bairn frae East Lothian A doot A widna hae had aw that muckle a problem unnerstaunin his dialeck…
via YouTube