Humbug

Part of speech: noun (n.)

1. An imposition under fair pretenses; something contrived in order to deceive and mislead; a trick by cajolery; a hoax.

2. A spirit of deception; cajolery; trickishness.

3. One who deceives or misleads; a deceitful or trickish fellow; an impostor. Sir J. Stephen.

Part of speech: verb (v.)

To deceive; to impose; to cajole; to hoax.