through and through

alternative noun through-and-through

1. not comparableCompletely; entirely; fundamentally.

   He moved from Cincinnati to San Francisco, but he's still a Cincinnati Bengals fan, through and through.

   1 more example

   Thus, sitting where I was, I lit my candle once more, and then clambered across that great coffin which, for two hours or more, had been a mid-wall of partition between me and danger. But to get out of the niche was harder than to get in; for now that I had a candle to light me, I saw that the coffin, though sound enough to outer view, was wormed through and through, and little better than a rotten shell. So it was that I had some ado to get over it, not daring either to kneel upon it or to bring much weight to bear with my hand, lest it should go through.

   [1898], J[ohn] Meade Falkner, Moonfleet, London; Toronto, Ont.: Jonathan Cape, published 1934, →OCLC

plural through and throughs · alternative noun through-and-through

1. A bullet wound in which the bullet passes through the body.