1 general:: Money obtained readily, with little effort and, often, illegally. For example, Winning the lottery? that's easy money! or I was wary of making easy money with the insider tips I'd been given. [c. 1900] Also see FAST BUCK.
American Heritage Idioms
2 general:: Phrase(s): easy money Go to soft money.
McGrawhill's American Idioms And Phrasal Verbs