"Might it be connected with German Beutel 'sack, bag"

Looked good to me, then I realized that beutel is pronounced 'boy-tel'.

To verify pronunuciation (how much we forget over the decades) I looked for a term I know from wine "bocksbeutel" which are short round wine bottles from the Franken region.

So i'm thinking beutel must tie in to bottle... no. In reading about the bottle I find that they may be named after "bockesbeutel' a sack for prayer books. (although buchen is book)

Furthering the sack story, but keeping "Bock" (goat) not bockes another theory is that the bottle is so named because its shape resembles a goat's scrotum, that is to say, sack.

Ahh, bocksbeutel, a bottle for an alcoholic beverage, like Bock Bier, which has a kick like a goat? No. Bock bier, often with a label depicting a goat, is possibly named Bock because it comes from Einbeck.

Anyway, I was wrong from the git-go - I always thought of boodle, bindle and bundle as interchangeable.