Noun

(es)

(Scottish) co-op (short for "association" store).

* {{quote-book

, year=1888 , title=Auld Licht Idylls , authorlink=J. M. Barrie , last=Barrie , first=J. M. , publisher=Hodder and Stoughton , pageurl=http://books.google.com/books?id=CaYAAAAAMAAJ&dq=auld%20lichts%20idylls%20sosh&pg=PA77

v=onepage&q=auld%20lichts%20idylls%20sosh&f=false

, page=77 }}

Weddings were celebrated among the Auld Lichts by showers of ha'pence, .... Willie Todd, the best man, ... slipped through the back window ... and making a bolt for it to the "'Sosh ," was back in a moment with a handful of small change.
Barrie's usage is annotated in Hammerton, cited below.

* {{quote-book

, year=1896 , title=Rantin Robin & Marget: With Other Scottish Sketches & Homely Rhymes , last=Blair , first=Alick , location=Arbroath , publisher=T. Buncle & Company , pageurl=http://books.google.com/books?id=qqYlAAAAMAAJ&dq=%22the%20sosh%22%20grain&pg=PA82

v=onepage&q=%22the%20sosh%22%20grain&f=false

, page=82 }}

An' as I thocht that a wee hair o' pepper would help to gie the gruel a gude flavour, I opened ane o' the wee bits o' pockies that had been brocht by Marget on the Saturday frae the Sosh an' put in a grain o' its contents.

* {{quote-book

, year=1897 , title=Sprays of Northern Pine , last=Mackenzie , first=Fergus , publisher=Oliphant, Anderson and Ferrier , page=110}}

Maggie, rin you to the sosh for a peck o' saut.

* {{quote-book

, year=1900 , author=Sir John Alexander Hammerton , title=J. M. Barrie and his books: biographical and critical studies , publisher=Horace Marshall and Sons , pageurl=http://books.google.com/books?id=Sx9LAAAAIAAJ&pg=PA248&dq=sosh+store&hl=en&sa=X&ei=Yio2UY_MFsXN0AHXh4G4Cw&ved=0CEoQ6AEwAw

v=onepage&q=sosh%20store&f=false

, page=248}}

In many Scottish villages, the Co-operative Store is known as the “Sosh [.]”

* {{quote-book

, title=Herbert Hoover A Reminiscent Biography , last=Irwin , first=Will , publisher=The Century Company , pageurl=http://archive.org/stream/herberthooverare007945mbp/herberthooverare007945mbp_djvu.txt , page=50 , year=1928 }}

In Hoover's second year there rose a prophet of the "barbs" or non-fraternity men whose appropriate name was Zion. His constant tilting against things as they are gave him the nickname of "Sosh " short for Socialist.

* {{quote-book

, year=1981 , author=Cameron Crowe , title=Fast Times at Ridgemont High , publisher=Simon and Schuster , pageurl=http://books.google.com/books?ei=rSc2UcqMIOrb0wGEq4HwDg&id=YUkrAQAAIAAJ&dq=sosh+climber&q=sosh

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, page=43}}

This, more than anything else, was the true sign of a high school social climber known as the “sosh'.” The teeth-baring ' sosh (long o) began as a glimmer in the eye.

* {{quote-book

, year=2003 , author=Michael Allen Dymmoch , title=The Feline Friendship , publisher=Macmillan , pageurl=http://books.google.com/books?id=dGQA2AGvT4AC&dq=sosh+number&source=gbs_navlinks_s , page=33}}

He handed her a paper with Erik Last's DOB and Visa card number. "This guy wouldn't give me his sosh ." His social security number.

* {{quote-book

, year=2009 , author=Robert Lockwood, Jr. , title=Political Ducks: Lucky, Lame, and Dead , publisher=Xlibris , pageurl=http://books.google.com/books?id=HwCmns2lanUC&pg=PA241&dq=sosh+number&hl=en&sa=X&ei=DSA2UZubDOiq0AGHl4H4Ag&ved=0CFwQ6AEwCDhG

v=onepage&q=sosh%20number&f=false

, page=241}}

Both had taught at different times in the Military Academy's Social Sciences Department [....] “Sosh ,” as the academic department was called [....]

* {{quote-book

, year=2009 , author=Sean Scalmer , chapter=‘for the sake of a straight out fight’: The Free Traders and the Puzzle of the Fusion , editors=Paul Strangio, Nicholas Dyrenfurth , title=Confusion: The Making of the Australian Two-Party System , publisher=Melbourne University Press , pageurl=http://books.google.com/books?id=E6Hd7FUX9n8C&pg=PA87&dq=sosh+number&hl=en&sa=X&ei=xyE2UZ6-Jejo0gGozYGYBQ&ved=0CFYQ6AEwBzha

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, page=87}}

In the face of Reid's prominent ‘anti-Sosh ’ campaign (in reality an attempt to wedge Deakin's supporters), Labor held its ground in the 1906 election [....]

* (seeCites)

Noun

(en noun)

sophomore

(dated) sophister (in academic sense)