a free ride
An unfair advantage or special treatment that a person receives without earning it or paying for it. Even though his grades were poor, Gary thought he should get a free ride to college because he was a football star. You're getting a free ride living with your parents. You don't even have to pay rent!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
a free rideINFORMAL
COMMON If someone gets a free ride in a particular situation, they get a benefit without working or paying for it. I never wanted anyone to think I was getting a free ride or special treatment from the boss. I certainly wasn't just sitting around, getting a free ride. Note: This expression is used to show disapproval.
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012