From Longman Dictionary of Contemporary Englishlive/lead/have the life of Rileylive/lead/have the life of Rileyinformal to have a very easy and comfortable life and not have to work hard He spends all day lounging by the pool and living the life of Riley. → life
Examples from the Corpus
live/lead/have the life of Riley• I hear that all the older boys are driving big expensive cars and living the life of Riley. 