"Crypto Judaism is the secret adherence to Judaism while publicly professing to be of another faith; practitioners are referred to as "crypto Jews" (origin from Greek kryptos - κρυπτός, 'hidden'). eg. Bush, Gates, Biden, Pelosi, Obama

Crypto Jews aka. Clowns

Jewishness is passed on via the mother. If the mother is Jewish, the child is 100% Jewish. If only the father is Jewish (but not the mother), then the child is 100% not Jewish.