Wiktionary
prep.phr. (context idiomatic English) In strict accordance with the rules, especially of card games; in the proper or expected manner.
Usage examples of "according to hoyle".
The river goes on another fifteen, twenty miles before it switches back to the north and joins up with the Humboldt River according to Hoyle.
Some whom we hired for New York turned up in Philadelphia a month later as though it were normal and according to Hoyle.
Politically it's shaky, but legally you can argue that it's all according to Hoyle.
You were cruising along, everything going according to Hoyle, you made one mistake, and bang, the sky fell down on you.
Maybe I shouldn't be too surprised at that, because that's in the rules according to Hoyle, too: we are what we are, and death doesn't change us.
The best way to get a crowd of hard-rock men to like you is to lick a few of 'em--off hours, of course, and according to Hoyle -- and the more of 'em you can lick at once, the better.