1
general::
A condition of financial security and comfort, as in If he actually makes partner, he will be on easy street. [Colloquial; c. 1900] Also see FAT CITY., see EASY STREET.
American Heritage Idioms
2
general::
Phrase(s): on easy street
Fig. in a state of financial independence and comfort. • I want to live on easy street when I grow up. • When I get this contract signed, I’ll be on easy street.
McGrawhill's American Idioms And Phrasal Verbs