I think the most apt term here is "humbug":
Definition from dictionary.com
noun
something intended to delude or deceive.
the quality of falseness or deception.
a person who is not what he or she claims or pretends to be; impostor.
something devoid of sense or meaning; nonsense: a humbug of technical jargon.
British. a variety of hard mint candy.
verb (used with object), humbugged, humbugging.
to impose upon by humbug or false pretense; delude; deceive. verb (used without object), humbugged, humbugging.
to practice humbug.
interjection
- (used as an expletive to express rejection of something as being completely untrue or nonsensical.)
Note particularly definition 3.
