rattlebrain

A stupid or foolish person, especially one whose thoughts are disjointed or chaotically disorganized. Sometimes hyphenated. These were not the unpredictable acts of some rattlebrain—they were coldly calculated. I don't know how they could let a rattle-brain like her lead this company.

Farlex Dictionary of Idioms.

rattlebrain

n. a stupid person. Please try not to be such a rattlebrain! Pay attention to what you are doing.

McGraw-Hill's Dictionary of American Slang and Colloquial Expressions

See also:

muckety muck
hit and miss
hit or miss
hit-and-miss
in demand
bowler hat (one) out (of something or some place)
bleeding edge
cop on
wiggy
flat strap

词组	rattlebrain
释义	rattlebrain rattlebrain A stupid or foolish person, especially one whose thoughts are disjointed or chaotically disorganized. Sometimes hyphenated. These were not the unpredictable acts of some rattlebrain—they were coldly calculated. I don't know how they could let a rattle-brain like her lead this company. Farlex Dictionary of Idioms. rattlebrain n. a stupid person. Please try not to be such a rattlebrain! Pay attention to what you are doing. McGraw-Hill's Dictionary of American Slang and Colloquial Expressions See also: muckety muck hit and miss hit or miss hit-and-miss in demand bowler hat (one) out (of something or some place) bleeding edge cop on wiggy flat strap
随便看	group together group under group under (something) grouse grouse about fruiter fruition fruit loop fruit of (one's) loins fruit of the poisonous tree fruit of the union fruit salad fruits of labor fruit up fruity frustration fry fry sauce fry the fat out of fry up F (someone or something) FTASB FTBOMH FTD FTFY