More on Junior Soph from Infoplease:

• Junior Soph - Junior Soph A man of the second year's standing is so called in the University of Cambridge ...
• Soph - Soph A student at Cambridge is a Freshman for the first term, a Junior Soph for the second year, ...
• Dictionary of Phrase and Fable: J - Definitions, origins, and illustrative excerpts for words, phases, and literary allusions starting with "J"