Pronunciation: [ klap-trap ]
Definition: noun
absurd or nonsensical talk or ideas

Origin: Mid 18th century; English
Etymology: from clap + trap, denoting something designed to elicit applause
Usage:

Synonyms:
bombast
bunk
drivel
nonsense
Antonyms:
sense
Example:
He told the company he was giving a serious speech, but it was truly just claptrap.