NONSENSE

n. making no sense, senselessness, absurdity; words or actions that have no meaning or importance, foolishness, gibberish, folly; (Genetics) DNA sequence that does not code for an amino acid and which products are not biologically active

adj. of or pertaining to a mutation in a structural gene that changes a nucleotide triplet into a stop codon and resulting in early termination of the polypeptide chain during protein synthesis

interj. expression of opposition used to contradict what a person has said or written

Nonsense is an utterance or written text in what appears to be a human language or other symbolic system, that does not in fact carry any identifiable meaning.
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Noun
1. a message that seems to convey no meaning
(synonym) bunk, nonsensicality, meaninglessness, hokum
(hypernym) message, content, subject matter, substance
(hyponym) absurdity, absurdness, ridiculousness
2. ornamental objects of no great value
(synonym) falderal, folderol, frills, gimcrackery, gimcracks, trumpery
(hypernym) decoration, ornament, ornamentation
Adjective
1. having no intelligible meaning; "nonsense syllables"; "a nonsensical jumble of words"
(synonym) nonsense(a), nonsensical
(similar) meaningless, nonmeaningful

n. fee faw fum

(n.)
Trifles; things of no importance.
  

(n.)
That which is not sense, or has no sense; words, or language, which have no meaning, or which convey no intelligible ideas; absurdity.