In the mind of a UniSFAn, an all purpose container for crappy obsolete periodicals, broken computers, egregious individuals (either Members or non-members), players of Cards, general trash and returned books (where distinguishable from general trash). Also a means of egress from the Clubroom for such purposes as attending lectures.
When the club was located in the old clubroom caution had to be shown when using the corridor to access UniSFA as Nelson had been known to leap from the room next door and wrestle unsuspecting UniSFAns to the ground. Beware The Nelson.