Quote:
bluff1
bləf/Submit
noun
1.
an attempt to deceive someone into believing that one can or will do something.
"the offer was denounced as a bluff"
synonyms: deception, front, subterfuge, pretense, posturing, sham, fake, deceit, feint, hoax, facade, fraud, charade; More
verb
1.
try to deceive someone as to one's abilities or intentions.
"he's been bluffing all along"
synonyms: pretend, sham, fake, feign, lie, hoax, pose, posture, masquerade, dissemble More
There's the definition of the word bluff and plenty of synonyms if you still want to pretend a bluff isn't a lie in the face of all logic and basic command of the english language.