All right, let everyone get it out of his system.
He wants me to get it out of my system.
We've got to get this out of our system now.
This is something you need to get out of your system.
For him, it was a book he simply had to get out of his system.
She might as well get it out of her system.
"We needed to clear the air and get things out of our system."
Because in six years she hasn't been able to get him out of her system.
We certainly want to get that out of our system.
Just something she needed to get out of her system.
Idiome