Posted by GPP on August 22, 2003
In Reply to: You are so full of it posted by zandera on August 22, 2003
: What does the phrase "You're so full of it!" mean?
: Maybe something like "You're crazy." ?
No, not really 'crazy'. Here the word 'it' substitutes for an impolite word. See
http://www.phrases.org.uk/bulletin_board/22/messages/599.html