said as an ironic comment on or reply to an overconfident assertion that may well soon be proved wrong by events
This expression apparently originated as a catchphrase in mid 20th-century armed forces’ slang.
2000 - Canberra Sunday Times - Speaking from New York, he said…I expect NASDAQ to fall more than another 5 - 10 per cent. Famous last words, but I expect it to break 3000…that is about a 20 per cent descent.
RELATED IDIOMS :
famous for being famous
having no recognizable reason for your fame other than high media exposure
famous for fifteen minutes
(especially of an ordinary person) enjoying a brief period of fame before fading back into obscurity
In 1968, the pop artist Andy Warhol (1927-87) predicted that in the future everybody will be world famous for fifteen minutes. Short-lived celebrity or notoriety is now often referred to as fifteen minutes of fame.