Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
hocus-pocus [ˈhəukəsˈpəukəs] n (trickery) очковтира́тельство; (words, of magician) фо́кус-по́кус; (jargon) белиберда́
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.