Stoup or stowp - "a kind of jug or dish with a handle"
(so a pint would be the size of stoup)
(from the Burns Dictionary at tartans.com)

The tune I sing is one I learned from Jean Redpath, and I was told recently by some traditionalist singing friends that her tune was too hard, and that in any case they were singing the original. ( Which sounds more like the popular one by far. Jean's is in mixolydian.

So what is the "original" tune?
Blessings,
Barbara