Why did they call Dan Blocker Hoss?

Dan Blocker was nicknamed "Hoss" due to his role as Eric "Hoss" Cartwright on the television series "Bonanza." The character was known for his big, warm-hearted personality and physical stature, which matched Blocker's own large frame. The term "Hoss" is a colloquialism for a strong, dependable man, further emphasizing Blocker's portrayal of the lovable character. The nickname stuck with him throughout his life, reflecting both his on-screen persona and his real-life demeanor.