Welcome to Gavagan's Bar (rhymes with "pagan") where it's always 1953, the bartender is Irish, and the drinks are never watered down! Where you can rub elbows with mad inventors, dark wizards, and ancient gods masquerading as ordinary schlubs.
The Gavagan's Bar stories were written by L. Sprague de Camp and Fletcher Pratt between 1950 and 1956, and were among those stories that pioneered the modern Fantasy-or-Science-Fiction "Tall Tales." The idea was to write a sci-fi or fantasy story as an anecdote told in a bar. The style won't suit everyone -- the authors paint the characters and setting with broad strokes, as opposed to the detailed descriptions popular today. But the sheer creativity and bravado is fantastic, and the stories hearken to the earliest days of the American Science Fiction scene.
The 1950s era is in full evidence in theses stories. In Gavagan's Bar, ladies drink at the tables, not the bar. Gentlemen will be refused service if they start getting too drunk, and the racism and sexism of the era is mild but evident -- in the characters. Refreshingly, the characters' flaws are starkly evident, and the authors pull no punches. None of it was wince-inducing for this reader, but others may find it not to their taste.
The stories cover topics such as ancient gods walking among men and dark sorcerers who make dire pacts, little people and mythological beasts, modern wacky inventions and medieval alchemy. None of the stories is allowed to go too long; they're each just long enough for the gag to work. It reads fast. if you've ever read Dashiell Hammett or Robert E. Howard in the original, you know what I mean; it's a pulpy style of writing, where words flow off the page as fast as you can turn them.
The stories were ended prematurely by Fletcher Pratt's untimely death. L. Sprague de Camp writes a little in the afterword about a story idea that was left undeveloped. I'm left to mourn what might have been. We don't really have anything like this being written today. For analogues in the same vein, you have to go earlier: the "Jorkens" tales of Lord Dunsany, and the "Tales of the White Hart" by Arthur C. Clarke are usually cited as the closest in style, but I've read only a few of the former and none of the latter. In any case, if you're a fan of the tall tale, or the 1950s, and especially if you're a Sci-Fi or Fantasy fan who loves the TV series "Mad Men," you owe it to yourself to check them out.