Is it true the equator shifted 23 degrees?

Earth has an axial tilt of 23.5�, meaning that relative to a perfectly perpendicular rotational axis as referenced per our orbital plane, Earth is inclined at 23.5�. So yes, the equator could be said to be "shifted" by 23.5�. But properly, it would be the axis that's off by 23.5�, not the equator.