to flatter, embellish, lie
The Smoke Enema:
was used to push smoke into a drowning victim in order to warm the victim from the inside-out.
“…A rectal tube inserted into the anus was connected to a fumigator and bellows that forced the smoke into the rectum. The warmth of the smoke was thought to promote respiration, but doubts about the credibility of tobacco enemas led to the popular phrase “blow smoke up one’s ass.” Search on “tobacco smoke enema” for illustrations of the apparatus.”