In his early career he focused on serious literature, publishing a biography of the lesser English poet Bryan Waller Procter and in 1940, co-editing a series of observations by contemporaries about Samuel Taylor Coleridge, Coleridge the Talker. Virginia Woolf cited this work in an essay stating, "Two pious American editors have collected the comments of this various company , and they are, of course, various. Yet it is the only way of getting at the truth—to have it broken into many splinters by many mirrors and so select." Armour wrote humorous poems—light verse—in a style reminiscent of Ogden Nash. These poems were often featured in newspaper Sunday supplements in a feature called Armour's Armory. Many of Armour's poems have been repeatedly and incorrectly attributed to Nash. Probably Armour's most-quoted poem is the quatrain: "Shake and shake / the catsup bottle / none will come / and then a lot'll." Another popular quatrain of his, also usually attributed erroneously to Nash, is: "Nothing attracts / the mustard from wieners / as much as the slacks / just back from the cleaners." Armour also wrote satirical books, such as Twisted Tales from Shakespeare, and his ersatz history of the United States, It All Started With Columbus. These books were typically filled with puns and plays on words, and gave the impression of someone who had not quite been paying attention in class, thus also getting basic facts not quite right, to humorous effect. As an example: "In an attempt to take Baltimore, the British attacked Fort McHenry, which protected the harbor. Bombs were soon bursting in air, rockets were glaring, and all in all it was a moment of great historical interest. During the bombardment, a young lawyer named Francis "Off" Key wrote The Star-Spangled Banner, and when, by the dawn's early light, the British heard it sung, they fled in terror!" It All Started with Europa begins in the wilderness full of "fierce animals ready to spring and fierce birds ready to chirp." It All Started with Marx includes the rabble-rousing Lenin declaring in public "Two pants with every suit!," "Two suits with every pants!" and "The Tsar is a tsap!" It All started with Eve quotes Napoleon as writing in a letter "Do you miss me? I hope the enemy artillery does." His book The Classics Reclassified includes take-offs on works such as The Iliad,Julius Caesar by William Shakespeare, David Copperfield by Charles Dickens, etc.; each take-off is prefaced by a short biography of the work's author in the same style. For Shakespeare, it says he "was baptized April 26, 1564. When he was born is disputed, but anyone who argues that it was after this date is just being difficult." In 1957, he appeared on the television game show You Bet Your Life hosted by Groucho Marx, of Marx Brothers fame. After introductions, Groucho repeated the show's famous catch-phrase, "Say the secret word, win a hundred dollars." Each episode of the show had a secret, common word and if the contestant said the word during his/her often hilarious interview, then the partnered contestants would each get $50. In this particular case, Armour caught the host in a semantic trap, by immediately stating, "The secret word." He then demanded his $100. After a very brief moment of confusion the band broke out with a short medley indicating that the secret word had been said. Announcer and assistant George Fenneman then arrived on camera and turned to Armour, "From the C.O. over here that we will allow you to do what you just did. But nobody else better try this. That's what they said." Armour replied, "Thank you, very much." And Fenneman left the frame and responded, "You're welcome," quickly caught himself, and almost cut himself off stating, "I had nothing to do with it." Normally when the secret word is said, Groucho immediately hands over cash. He did not hand over the cash and it's unclear if they paid Armour the bonus even after Armour and his partner won the game. He also composed the following poem that he read to Groucho.
To Groucho Most poets write of Meadowlarks I sing instead of Groucho Marx His lustrous eyes, each like a star His noble brow, his sweet cigar His manly stride, his soft moustache His easy way with sponsors' cash His massive shoulders, brawny arms His intellect, his many charms In short, unless the truth I stray from A man to keep your wife away from.
He recited a couple other humorous poems on You Bet Your Life
Middle Age Middle Age is a time of life that a man first notices in his wife
Going to Extremes Shake and shake The catsup bottle. None'll come— And then a lot'll.
Armour's books are typically written in a style parodying dull academic tomes, with many footnotes, fake bibliographies, quiz sections, and glossaries. This style was pioneered by the British humorists W. C. Sellar and R. J. Yeatman with their parody of British history 1066 and All That in the 1930s. A preface of one book noted "The reader will not encounter any half-truths, but may occasionally encounter a truth-and-a-half."