noun
bluff; bluster
Refers to an empty show of confidence or strength to deceive or intimidate others. Often used in the phrase ハッタリをかます (to put on a bluff).
彼の強気な態度はただのハッタリだった。
His aggressive attitude was just a bluff.
あの政治家の約束はハッタリに過ぎない。
That politician's promises are nothing but bluster.