It's when you are having a pleasant conversation with someone, and suddenly a said buzzard decides to act tough and get all pissy.
It's male nonsense.
You'd think that being almost 350 years old they would learn but no.
They need to prove their dominance, puffing out their chest and throwing hands.
"My name is Maximus Decimus Meridius, commander of the Armies of the North, General of the Felix Legions and loyal servant to the TRUE emperor, Marcus Aurelius. Father to a murdered son, husband to a murdered wife. And I will have my vengeance, in this life or the next."
"No it's not, you're bullshitticus, stop talking shit."
So I told my dad "I drove your car to the party and was drinking, but my friend who wasn't drinking drove your car home." My dad said, "Son, I'm a used car salesman, Don't bullshit a bullshitter."