noun

• (vulgar, literally) Feces produced by a bull.
  "Oh, I get it! So it's not a pyramid, it's just pyramid-shaped. You know, like a Dorito, or an Angry Bird, or just a pile of bullshit."
• (vulgar, slang, usual sense) Statements that are false or exaggerated to impress or cheat the listener.
  "Don't pay any attention to him. He talks a lot of bullshit."
• (vulgar, slang) Statements that are transparently or offensively false.
  "That's total bullshit! I called your office and they said that you didn't come in!"
• (rhetoric) Statements that are intentionally misleading, whether true or not.

adj

• (vulgar, slang) Absurd, irrational, or nonsensical (most often said of speech, information, or content).
  "a bullshit job"

verb

• (ambitransitive, vulgar, slang) To tell lies, exaggerate; to mislead; to deceive.
  "I think you’re bullshitting. Let’s just call your office and see if you even came in."
• (intransitive, vulgar, slang) To have casual conversation with no real point; to shoot the breeze.
  "I will probably just go and bullshit with Joe for a while."
• (intransitive, vulgar, slang) To come up with on the spot; to improvise.
  "We just went on stage and bullshitted the whole concert because we didn’t know any songs."

intj

• (vulgar, slang) An expression of disbelief at what one has just heard.