Two examples that my dear old and sadly departed grandmother was fond of;
'In the name of the wee man', which I took to be a polite Glaswegian equivalent of exclaiming 'Jesus Christ' when surprised or annoyed.
'D'ye think I came up the Clyde in a banana boat?', implying, ' do you think I'm stupid'. I have no idea whether or not the crews of vessels transporting bananas to the Clydeside docks in times gone by had a reputation for being intellectually challenged.
Memorable phrases that I heard so often as a child, but I rarely hear these days - maybe I should make more use of them myself.