From Longman Dictionary of Contemporary Englishbe full of crap/shit/itbe full of crap/shit/itnot politeWRONG/INCORRECT a rudeexpression used to say that someone often says things that are wrong or stupidDon’t listen to Jerry. He’s full of it. →full
Examples from the Corpus
be full of crap/shit/it• His head was full of it.• The very donkeyboyswere full of it.• Usually her hands are full of it.• Televisionis full of it about election time.• I thought she was full of shit, but what the hell?• Black cats are full of it, while paleanimals have less.