full of it meaning

• [American idiom]
  full of nonsense; talking nonsense. (Slang.)
  • Oh, shut up, Mary. You're full of hot air.
  • Don't pay any attention to Bill. He's full of beans.
  • You're full of it.
  
• 
  [American slang]
  mod. full of nonsense.
  • You're full of hot air. I don't believe you.
  • Aw, you're just full of it! Be quiet!
  
  

• at the full:    At the height, eg ...
• be full:    Verb: be fullBe sa ...
• full:    Adjective: full (f ...

Examples

1. i can not tell you the full of it.
2. i cannot tell you the full of it.
3. when the evening was over, she went to bed full of it.
4. you're so full of it . you're gonna lie to me more
5. i think i must tell you the full of it