The Foundary was a factory in Waterford where everyone's grandfather used to work. It was located down by the kay river. They used to pronounce it in this way due to the peculiar gutteral r sound of the old Waterford accent.
Used to describe a person that is very polite or Charming for their own gain
Example Business people can be charming or "Sweet" to customers.If customers see them as igornant or "Sour" they will not shop there Hence the phrase Ya wont catch Flies with Vinegar