He smiled and betrayed her with a kiss.
betray with a kiss
idiomTo betray someone in a seemingly inconspicuous or innocuous manner.
Origin
disputed originThe term comes from the Gospel of Luke chapter 22, verse 48 of the New Testament: ⁴⁷ While He was still speaking, a crowd arrived, led by the man called Judas, one of the Twelve. He approached Jesus to kiss Him. ⁴⁸ But Jesus asked him, “Judas, are you betraying the Son of Man with a kiss?” The Gospel of Luke, Berean Standard Bible.
The politician shook his rival's hand and offered a friendly smile, only to betray him with a kiss by leaking his private emails.
The advisor offered words of comfort and a warm embrace, yet he ultimately betrayed his king with a kiss by orchestrating the palace coup.
- 01
blow a kiss
To kiss one's own hand, then blow on it in a direction towards the recipient.
- 02
kiss and cry
The publicly viewable enclosure in which figure skaters sit immediately after a performance, while they await and receive the judging results.
- 03
kiss and make up
To settle one's differences and forgive.
- 04
kiss and tell
To betray a confidence by disclosing private information, especially of a sexual nature.
- 05
kiss arse
Alternative form of kiss ass, to curry favour with the powerful by obsequious flattery.
- 06
kiss ass
to flatter or perform favors excessively, especially to receive preferential treatment from a boss or other superior; to behave obsequiously.
- 07
kiss my ass
Go away!; an expression of disdain or dismissal.
- 08
kiss of death
Something that may seem good and favorable but that actually brings ruin to hopes, plans, etc.