He’s three sheets in the bag

Couldn’t wait until next week to post this beauty.  This is another congruent conflation (mixed idioms with the same or similar meaning), combining “three sheets to the wind” and “half in the bag”, both describing someone who is intoxicated.  The confusion might also lie in sheets sometimes being in laundry bags?  Then again, the speaker, Lisa Davies O’Donnell, might have just had a few too many…  Thanks Lisa for contributing to the malaphor library!