Definition & Meaning of "sosh"in English

What does "sosh" mean in Scottish slang?

It is used in Scotland, especially in working class communities, to refer to a cooperative store, a type of retail shop owned by members who share in its profits. People typically say "I'm going to the sosh for some milk" or "The sosh is cheaper than the big supermarket." The term originated in 19th or early 20th century Scottish working class speech, as cooperative movements grew, and remains a regional marker, though it has become less common as general stores have declined.