out of one's system

1. Out of one's thoughts or inclinations. It is often put as get something out of one's system, as in You need to get your ex-husband out of your system, or At the annual all-chocolate buffet I try everything, which gets it out of my system for at least a month, or Let him complain as much as he wants so he'll get it out of his system. This idiom uses system in the sense of “all one's physical and mental functions.” [c. 1900]

Example Sentences

Other than that, one could make a pilgrimage to Utah’s renowned Bonneville Salt Flats or find a local drag strip for hire to get the demons out of one’s system, so to speak, but out on the open road it’s another story.

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Freud hypothesized that throwing up can be a symbolic act, an outward expression of the impulse to get a noxious thought out of one’s system.

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"Leaving Vietnam behind did not mean getting it out of one's system," he said.

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Some things one gets out of one’s system, And other things in.

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