[1] : WordNet (r) 2.0

gravy train
     n : income obtained with a minimum of effort syn: easy money
see also:
easy money 

Gravy Train >> G Words
Gravy Train, definition of term: Gravy Train
gravy+train_pag1.html

Gravy >> G Words
Gravy, definition of term: Gravy
gravy_pag1.html

Power Train >> P Words
Power Train, definition of term: Power Train
power+train_pag1.html

Freight Train >> F Words
Freight Train, definition of term: Freight Train
freight+train_pag1.html

Commuter Train >> C Words
Commuter Train, definition of term: Commuter Train
commuter+train_pag1.html