hum·bug 
(hŭmbŭg′)
(hŭmbŭg′)n.
1. Something intended to deceive; a hoax or fraud.
2. A person who claims to be other than what he or she is; an impostor.
3. Nonsense; rubbish.
4. Pretense; deception.
interj.
Used to express disbelief or disgust.
v. hum·bugged, hum·bug·ging, hum·bugs
v.tr.
To deceive or trick.
v.intr.
To practice deception or trickery.
[Origin unknown.]
humbug′ger n.
humbug′ger·y n.