ぼんくら

  1. adjectival nouns or quasi-adjectives (keiyodoshi), noun (common) (futsuumeishi)

    stupid, half-witted, dull-witted, thickheaded
    word usually written using kana alone

  2. noun (common) (futsuumeishi)

    blockhead, idiot, dimwit
    word usually written using kana alone