[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./
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