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A drink common among the dodgier elements of the Cape Town population.

One makes a blue train by filtering methylated spirits through a loaf of bread in order to remove the bitter-tasting purple dye (In South Africa, the dye is mandatory in order to prevent it's use as a beverage). Since only the dye is removed, not the kerosene, methanol, isopropanol etc, it gets you smashed off your head, but may cause vomiting, headaches, seizures, blindness and/or death.

It is called blue train because the thoroughly dyed loaf resembles the Blue Train, an ultra-luxury overnight passenger train between Joburg and Cape Town.
Dave's actually started drinking blue train. Now that's a rock-bottom alcoholic!
by George McBob April 29, 2009
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An Elite group of riders in the Riverina region of NSW Australia who constantly and consistently dominate the cycling field while turning heads with their good looks
The bluetrain dominated again.
by Candyman1 April 25, 2019
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