bullshit

from The American Heritage® Dictionary of the English Language, 4th Edition

• n. Foolish, deceitful, or boastful language.
• n. Something worthless, deceptive, or insincere.
• n. Insolent talk or behavior.
• intransitive v. To speak foolishly or insolently.
• intransitive v. To engage in idle conversation.
• transitive v. To attempt to mislead or deceive by talking nonsense.
• adj. Very angry; incensed.
• interj. Used to express extreme displeasure or exasperation.

from Wiktionary, Creative Commons Attribution/Share-Alike License

• n. False or exaggerated statements made to impress and deceive the listener rather than inform; nonsense.
• n. A card game in which the object is to bluff about cards laid down and to determine when one's opponents are bluffing; also known as "BS" or "I Doubt It".
• n. An object of frustration and/or disgust, often caused by a perceived deception.
• n. The faeces of a bull.
• adj. Absurd, irrational, or nonsensical. Most often said of speech, information, or content.
• v. To tell lies, exaggerate; to mislead; to deceive.
• v. To have casual conversation with no real point.
• v. To come up with on the spot, to improvise poorly.
• interj. An expression of disbelief or doubt at what one has just heard.

from the GNU version of the Collaborative International Dictionary of English

• n. a ludicrously false statement.
• v. to talk through one's hat.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• n. obscene words for unacceptable behavior
• v. speak insincerely or without regard for facts or truths