whiggamores

When a group of Covenanters marched on Edinburgh to present the Engagement with Charles I in 1848, it became known as the "march of the whiggamores" or "sour milk men."

Whig = Whey Steve Carper 2008

[8] "The south-west counties of Scotland have seldom corn enough to serve them round the year; and the northern parts producing more than they need, those in the west come in the summer to buy at Leith the stores that come from the north; and from a word 'whiggam,' used in driving their horses, all that drove were called the 'whiggamores,' and shorter, the 'whiggs.'

Claverhouse Mowbray Morris 1879