I was told by a NYC tour guide that Number 84 Bleecker Street (??? some street in the Village; I've forgotten now) was a rather (in)famous speakeasy during Prohibition. Whenever cops pounded on the front door, the owner would yell "Eighty-six it!", meaning for patrons to run out the back door down a secret corridor to adjoining number 86, which had both hiding places as well as a hidden back exit leading onto a small side alley. This could be apocryphal, of course. You know how tour guides are.