from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Something that is ultimately ruinous, destructive, or fatal: "Divorce was once a political kiss of death” ( Ellen Goodman).
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A kiss on the cheek that signifies the death of the receiver, as delivered by a mob boss or one with such influence.
- n. Something that may seem good and favourable but that actually brings ruin to hopes, plans, etc.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. something that is ruinous
From the kiss by which Judas betrayed Jesus (Mark 14:44-46).(American Heritage® Dictionary of the English Language, Fourth Edition)
Biblical: Judas betraying Jesus with a kiss. (Wiktionary)