Synonyms of flapdoodle

1 Syllable
crap, bs, jazz, bull, guff, jive
2 Syllables
farce, folly
3 Syllables
idiocy, foolishness, craziness, silliness
4 Syllables
insanity, applesauce, incongruity, absurdities, inanity, senselessness, ludicrousness, absurdity, stupidity
5 Syllables
illogicalness, ridiculousness
6 Syllables
illogicality, improbability, unreasonableness, irrationality