grow out of (third-person singular simple present grows out of, present participle growing out of, simple past grew out of, past participle grown out of)
- (idiomatic) To become too physically large for something, especially clothes.
- I give my old clothes to charity when I've grown out of them.
- (idiomatic, by extension) To become too mature for something.
- 2002, House of the Seven Gables - Page 37
- Still, I see you mean well enough, and are merely suffering from the debilitating cheerfulness of youth. You will soon grow out of that.