E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Borachio.
A drunkard. From the Spanish borachoe or borracho, a bottle made of pigs skin, with the hair inside, dressed with resin and pitch to keep the wine sweet. (Minskeu.)
1
Borachio. A follower of Don John, in Much Ado About Nothing, who thus plays upon his own name:
2
I will, like a true drunkard [borachio], utter all to thee.Act iii. 5.