blithering idiot; bloody fool; total moron; dimwit
Strongly derogatory term for a person considered extremely foolish or incompetent. Often used in anger or as an insult.
You blithering idiot! What are you doing?!
If you leave it to a total moron like that, the work will be a mess.
Katakana spelling used for emphasis or in casual writing.
Kanji spelling; less common than kana.
Compound of ばか (fool) and たれ (a pejorative suffix derived from the verb たれる, meaning 'to hang down' or 'to drip', used to intensify insults).