How literal is this phrase?

Sample examples at http://tinyurl.com/is-it-lit

gravy train:

Definitions:

  1. income obtained with a minimum of effort

Examples:

  1. complains , and gains , most from taxes and government - from the federal government gravy train might provide the right with just the kind of crash course in addition and subtraction
  2. ' ( Man , 30 - 45 , London ) , ' It 's a gravy train . They 've all doubled their wages ' ( Man , 30 - 45 ,
  3. represented themhaving signed away their birthright so that they can join theirfellow politicians on the gravy train . For the UK the betrayal of the national interest by thesurrender of over a
  4. politicial and bureaucratic elite will not sacrifice in order that they might ride the Brussels gravy train . They deserve to be consigned to the frozen lake in the innermost circle of
  5. Tory and Lib Dem , of what jobs our illustrious MPs had before boarding the gravy train . I can only recall one who had a proper job ; ship 's steward

Note: Please select the answers below carefully based on the definition which occurs frequently in the examples

Step 3: score of 0-5 for how literal is the phrase "gravy train"
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