Slip coach
WordNet

noun


(1)   A railway car at the end of the train; it can be detached without stopping the train
WiktionaryText

Noun


slip coach
  1. A coach at the end of a long-distance train which carries passengers for an intermediate destination and is decoupled or "slipped" and left behind. (In bygone times the decoupling was done on the move; the rest of the train did not stop.)
 
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