also: にぶチン
dullard; insensitive person; slow-witted person
Colloquial, mildly derogatory term for someone who is slow to understand or insensitive to others' feelings. Often used in light teasing among friends.
See also: 鈍い (にぶい)
He's a dullard, so jokes don't get through to him.
I don't want to tell such an insensitive person.
Katakana spelling may appear in casual or emphatic contexts, but hiragana is more common.
Derived from the adjective 鈍い (にぶい, 'dull, slow') with the colloquial suffix ちん, which often adds a familiar or slightly derogatory tone to personal nouns.