GET SOMETHING OUT OF ONE'S SYSTEM

{v. phr.} 1. To eliminate some food item or drug from one's body. * /John will feel much better once he gets the addictive sleeping pills out of his system./ 2. To free oneself of yearning for something in order to liberate oneself from an unwanted preoccupation. * /Ted bought a new cabin cruiser that he'd been wanting for a long time, and he says he is glad that he's finally got it out of his system./