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general::
Phrase(s): cause (some) eyebrows to raise [and] cause some raised eyebrows
Fig. to shock people; to surprise and dismay people. (The same as raise some eyebrows.) • John caused eyebrows to raise when he married a woman half his age. • If you want to cause some eyebrows to raise, just start singing as you walk down the street.
McGrawhill's American Idioms And Phrasal Verbs