A more proper term to describe a professional bullshitter. One who brags constantly and unnecessarily. "Bovine" referring to cattle (i.e. Bull), and "Scatologist" (one who analyzes excrement).
Bill: "What this I hear about you and Tom getting it on last night?"
Mary: "Don't believe everything Tom tells you. I asked him to gave me a ride home. That's all. He's just BSing you."
A person that is smoothly agreeable and courteous; Sweet; pleasant; delightful; gracious or agreeable; in manner; attractive and just wants to make people happy.