From China Digital Space
正腐 (zhèngfǔ) govern-rot
Homophonous with “government” (政府), but the characters can mean “totally rotten” or “completely corrupt.” Blocked from Weibo search results as of September 10, 2014.
Example: Deleted Weibo post captured by FreeWeibo:
麦穗佛: May I ask, those huge sums of money that govern-rot officials collect for dog registration fees, where do they get used?! (September 4, 2014）