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The name bestowed upon the city of Lancaster UK having experienced the 'greatest weekend of your life'. In order for the term to be qualified then the upper levels of the 'bantmosphere' must have been reached and at least one member of the party lost. (The term arises from the use of the word Nan; a noun used to express general ladishness or to insult your own elderly female relatives in order to undermine others I.e. Suck My Nan!)
Student 1: I can honestly say that this has been the "Greatest weekend of my life!"
Student 2: I know, it's a shame we have to go back to Nancaster for some bloody lectures!
by ALadNan123 September 08, 2013