A person who habitually and effectively exaggerates, cajoles, seduces verbally, etc: She's seen as a talented maverick. ''She's not a bullshit artist''(1940s+)
The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D. Copyright (C) 2007 by HarperCollins Publishers. Cite This Source
Idioms and Phrases with bullshit artist
Also,bull artist. A person who habitually exaggerates, flatters, or talks nonsense. For example, Don't believe a word of it—he's a bullshit artist. Both versions are considered vulgar slang. The first dates from the 1940s, the second from the World War I period.