From Longman Dictionary of Contemporary Englishthe half of itthe half of itspokenWORSE used to emphasize that a situation is more difficult, complicated, or unpleasant than people realize Everyone knows she’s a difficult girl, but they don’t know the half of it. → half
Examples from the Corpus
the half of it• If I told you she was a little flaky, you wouldn't be getting the half of it.• You don't know the half of it.• That, however, as Digby well knew was not the half of it.• Loft is only the half of it, son.• Actually, Josh saw and knew only the half of it.• But that was only the half of it.• But this isn't the half of it. 