Not sure why I looked flannel up, but I did and this is what I found. I’ve honestly never heard any of these terms relating to flannel. In my world, flannel meant something you sleep in, roflmao “trumpery”?!
applesauce [slang], balderdash, baloney (also boloney), beans, bilge, blah (also blah-blah), blarney, blather, blatherskite, blither, bosh, bull [slang], bunk, bunkum (or buncombe), claptrap, codswallop [British], crapola [slang], crock, drivel, drool, fiddle, fiddle-faddle, fiddlesticks, flapdoodle, folderol (also falderal), folly, foolishness, fudge, garbage, guff, hogwash, hokeypokey, hokum, hoodoo, hooey, horsefeathers [slang], humbug, humbuggery, jazz, malarkey (also malarky), moonshine, muck, nerts [slang], nonsense, nuts, piffle, poppycock, punk, rot, rubbish, senselessness, silliness, slush, stupidity, taradiddle (or tarradiddle), tommyrot, tosh, trash, trumpery, twaddle
Dreaming dreams, that perfect novel
A heroine and hero at first squabble
Overcoming obstacles, finding love
Holding hands, happiness undreamed of
Wrapped up in flannel, oh what a sight
It had her laughing with all her might
If any of her high falooting friends
Could see her now, there’d be no end
To the piffle poppycock and blather
But truly none of it mattered