What is Bull ****

what does "Bull****" and "as of now" means.

Bull****, n, 1. exaggerated or foolish talk, nonsense; 2. deceitful or pretensious talk.

I don't know why the excrement of bulls was selected over that of any other animal for this particular honour.

'As of now' means 'at the present time,' with the implication of possible future change. 'As of now, there are nine planets in the Solar System.'