1. noun
a) False or exaggerated statements made to impress the listener rather than deceive.
Dont pay any attention to him. He talks a lot of bullshit.
b) A card game in which the object is to bluff about cards laid down and to determine when ones opponents are bluffing.
Anyone want to play a few hands of bullshit?
2. verb
I think youre bullshitting. Let’s just call your office and see if you even came in.
b) To have casual conversation with no real point.
You’re bullshitting me. I called your office and you never even came in.
3. interjection
An expression of disbelief or doubt at what one has just heard.
Wikipedia foundation.