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
The moment when everything blends into nothing, and you, your chosen lady and a bottle of Taste, have a flirty chat about puppies and caravan holidays in Geesala and then you realise....She will do for the oul Shtart!