To anyone who does not know the key, the five characters of the cryptogram are different but the genuine receiver is in no danger of confusion.

Mary is informed that Polly is one of those hypocorisms, or pet-names, in which our language abounds. Most are mere abbreviations, as Will, Nat, Pat, Bell, &c., taken usually from the beginning, sometimes from the end of the name.

For quotations using this term, see Citations:fuckable.

How! There's bad news. / I must obscure, and hear it.