Origin Story
Since byeokchangho is used for a person you cannot reason with, it is easy to imagine a blank, walled-in room. But the word, surprisingly, comes from oxen. The original form was byeokchang-u (碧昌牛). One character was taken from each of two counties in North Pyeongan Province — Byeokdong (碧潼) and Changseong (昌城) — to make byeokchang, and the character u (牛, "ox") was added: literally, "oxen from Byeokdong and Changseong." The cattle of these two regions were famous for being unusually large, powerful, and tough. They were so stubborn and hard to handle that when people saw someone bullheaded who would not listen to reason, they said he was "like a byeokchang-u." Over the years the pronunciation of byeokchang-u shifted to byeokchangho, and it finally settled as a word for an utterly closed-minded person.
Once it had hardened into byeokchangho, its sound led to a false reading based on the characters — "a house (壁) with its window (窓) walled up." But its true identity is the ox; this is yet another case where a shift in sound invited a mistaken Sino-Korean gloss.
Meaning Evolution
How It Is Used
No matter how I explain, he won't listen — he's a byeokchangho if there ever was one.
Don't be so pigheaded (byeokchangho); just think it over once.
He's so stubborn that talking to him feels like talking to a byeokchangho.
Related Words
Memory Hook
It's not a wall — it's an ox. Picture the big, tough byeokchang-u of Byeokdong and Changseong.
"It was no wall blocking the way — it was an ox digging in its heels."