In my first novel, he was from Alabama. I then chose my year -- in this case, 1896 -- and set to buying comedic novels written by Alabama authors in that year. I say "comedic novels" because those authors are the most likely to utilize colloquial slang. I collect books, as all of you probably do, so when researching I try to buy an online version or something I can print out, so's I can highlight it. Sometimes I'm stuck with an original first edition, or borrowing it from a library, and there's no way I'd highlight that. Then I xerox it, and put the original on the shelf. (Of course I send the library book back to the library, you out-and-out dough-heads!)
This is the fun part of researching. For my 1896 book set in Nigeria, I discovered that my merchant trader hero (based on Bono of U2, but that’s another subject entirely) was able to jazz things up while waiting on some beefeaters coming to do him harm. He was never afeard, and kept his shirt on.
I loathe anachronisms and can spot them a mile away, but lately I've been playing fast and loose by allowing slang where the first incidence of use was about two years after the year of my story, on the assumption that vernacular might've been kicking around the jerkwaters. How in the name of Zeus' bunghole do midieval authors do it? When I set to writing a pirate novel, I probably should have set it in the "Golden Age of Piracy," 1690-1730. Instead, I set it in 1827, as far back as I was willing to go, because I was afraid of losing a shitload of slang. (I can't look up "shitload" because Random House hasn't put out The Historical Dictionary of American Slang, Volume III [P-Z]). What I mean to say is, one can't exactly imagine Edward Teach or Black Bart bleating that the heroine is nothing but a squirrel covering her back with her tail, a public ledger and receiver general open to everyone, a hedge whore, a laced mutton as common as a barber's chair-all phrases from Grose's wonderful 1811 Vulgar Tongue. Tell it to the Marines!
A difficult one is finding a slang term that approximates our modern "bullshit" (1915), as in "crap" or "stuff." Like "What's this bullshit doing here?" The closest thing, and one of my current faves, is "bilgewater."
He was gump enough to believe that bilgewater.
My people are also fond of calling stupid idiots "bilgeys" which are, of course, bilge-rats. Blather, gas, claptrap, hogwash, and flapdoodle are all more euphemistic ways of saying "bullshit." Please chime in with any more that might strike your fancy.
For the pirate book, I was given permission, instead of concocting the usual glossary of "foreign" terms and phrases, to devise a glossary of nautical slang. I'll go to town on that glossary. I was hoping most of the terms would be obvious from the dialogue in context, to wit:
"Are you poking Charlie at my mates?" piped Bellingham, who had evidently been standing in the open doorway. He gave a stiff bow to Tomaj, but continued braying, "Zaleski's been my sea daddy since I came up through the hawse pipe! He'd go through the hoop for Cap'n Balásházy!"
However, I imagine anyone interested enough in reading a glossary in the first place might make a regular husking frolic of reading a nautical slang glossary.
Oh man, oh manischewitz, as my mother used to say, for no apparent reason. (She just told me it was from a 1950s radio ad for wine, but I prefer their matzo balls.)