noun, noun or participle which takes 'suru', intransitive verb
whispering into someone's ear
Literally 'ear-rubbing'; describes the act of leaning close and whispering, often with a secretive or intimate nuance. Rare term.
会議中、彼は隣の人に耳こすりをしていた。
During the meeting, he was whispering into the ear of the person next to him.
noun, noun or participle which takes 'suru', intransitive verb
snide remark; sly dig; insinuation
Figurative extension: a whispered comment meant to undermine or insult, like a sly dig or insinuation. Rare.
彼女はいつも耳こすりのような嫌味を言う。
She always makes snide remarks, like whispering digs.