• ТРОЯНСКИЙ КОНЬ lit
[NP; sing only; fixed WO]
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⇒ a subversive, harmful device, action, group of people etc that is disguised as something good:
- Trojan horse.
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← From the legend of the large hollow wooden horse that the Greeks presented to the Trojans as a gift. When the Trojans took the horse into Troy, the Greek soldiers hiding inside the horse emerged and opened the gates of the city to the Greek army. Described in Homer's Odyssey (VIII, 492-520 etc) and Virgil's Aeneid(II, 15ff).
Большой русско-английский фразеологический словарь. — М.: ACT-ПРЕСС КНИГА. С.И. Лубенская. 2004.