Green’s Dictionary of Slang

(N.Z.) cheap wine packaged in a cardboard box rather than a bottle.

1996		homepages.rya-online.net 🌐 Our ‘emergency rations’ of the local Chateau Collapso (which to our horror has gone up from 130 to 155 pesetas a litre).
1999		J. Saward at grandprix.com 9 Nov. 🌐 I think I’ll go down to the local supermarket for a bottle of Chateau Collapso instead.
2003		McGill Reed Dict. of N.Z. Sl. 44: chateau collapsio Cheap bulk wine in a weak cardboard box.
2005		M. O’Neill at www.thenakedscientists.com 🌐 A few glasses of the old ‘Chateau Collapso’ and your inhibitions diminish.