Ffs, that wasn't colloquialisms that was Scot Squad, hilarious.
Slick, nice boat in your avatar, what is it? A fisher?
Barnpot (northern) - idiot, fool
Barnpotty - where and on what I spent much of my childhood.
Bits are added on in many place names here ie Ardnamurachan where the middle letter a is added in speech.
People in Birmingham say 'crips' instead of 'crisps'.
Reminds me of the old Enoch &Eli black country joke:In Birmingham a bison is something you wash your hands in.