What does "blow smoke" mean?

To speak with a lack of credibility, sense, purpose, or truth; to speak nonsense.

What is a synonym for "blow smoke"?

Common synonyms include: puffs.

verb

verb ·Rare ·Advanced level

Verb

1
To speak with a lack of credibility, sense, purpose, or truth; to speak nonsense.
"Are these "statistics" they cite verifiable, or are they just blowing smoke, trying to scare people?"

"Are these "statistics" they cite verifiable, or are they just blowing smoke, trying to scare people?"

By shortening of the full expression blow smoke up someone's ass, deemed less vulgar.