Synonyms: balderdash, nonsense, bunk, hogwash, etc.
Definition of Poppycock
noun
1. Nonsense, foolish talk, or empty talk intended to deceive. It is often used to express disbelief or dismissal of something as untrue or exaggerated.
Examples:
Don't listen to his wild theories, it's all poppycock.She dismissed the rumors about her retirement as mere poppycock. The notion that the earth is flat is absolute poppycock.