mendaciloquence 

The capacity to speak in a deceitful, but artful and convincing way.

Senator Obama was elected president largely on the basis of his stirring mendaciloquence.

mendaciloquence by Mendaciloquent October 13, 2011

Mendaciloquence 

An artful way of telling lie to the public

The president spoke in mendaciloquence that He would soon take an action against the high cost of petrolleum

Mendaciloquence by Ibrahim isah ib October 5, 2020