what does your full of it mean?

Question

like topic suggests

Answer 1

Basically it's a shortening of a crude phrase.
But what it's shortened from is not the point. What is, is what it means.
"You're full of it," is a phrase commonly used to display disbelief or to call someone on a bluff. If someone tells a tall tale, you'd be quick to tell them that "they're full of it" because there's no way they caught a cod the size of a white shark.

Answer 2

I think you live in a sheltered community. I will give you the answer to "what's full of it"
mean. That means you're full of bull-shi-.
Have you ever played baseball using
cow-paddies for bases? Same thing only
from a bull.

Answer 3

"full of it" refers the saying 'your'e full of s**t (excrement). Usually an introjection used, when someone is exagerating, or your statement of disbelief at the exageration.