grist to one's/the mill

idiom

British

: something that can be used for a particular purpose

Now that he's a writer, he regards his difficult childhood experiences as grist to the mill.

Examples of grist to one's/the mill in a Sentence

Recent Examples on the Web

So this observation that the ring is offset just adds more grist to the mill for the existence of these unseen planets. —Phil Plait, Discover Magazine, 2 Jan. 2012