Explanation: Described as slurred speech, not straightforward. Source: "Dream of Red Mansions" Fifty-back: "not because of Jia Mu shows not a good development of their own, then half-spit Banlu told Grandmother Jia said: 'Unfortunately, this child did not fu! Year before his father was gone.'"
Thesaurus: partly conceal and partly confess; speak with reserve (restraint); to hum and haw