get something out of one's system

[get something out of one's system] {v. phr.} 1. To eliminate somefood item or drug from one's body.

John will feel much better oncehe gets the addictive sleeping pills out of his system.

2. To freeoneself of yearning for something in order to liberate oneself from anunwanted preoccupation.

Ted bought a new cabin cruiser that he'dbeen wanting for a long time, and he says he is glad that he's finallygot it out of his system.