millennium bug

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noun Informal.

a bug that could cause computers or software to misinterpret a year after 1999 as having the first two digits 19 instead of 20, due to the coding of dates using only the last two digits of the four-digit year.

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Also called Y2K problem, Y2K bug.

Origin of millennium bug

First recorded in 1990–95

Words nearby millennium bug

millennial, Millennial Church, millennialism, millennium, Millennium Bridge, millennium bug, millepede, millepore, miller, Miller-Abbott tube, Millerand

How to use millennium bug in a sentence

I was thinking about retiring from modeling, but spending that time with them rekindled that bug.
Porn Stars on the Year in Porn: Drone Erotica, Belle Knox, and Wild Sex|Aurora Snow|December 27, 2014|DAILY BEAST
Their reward: what is possibly the most infuriating series finale of the new millennium.
The Biggest Bombs of 2014: ‘Sex Tape,’ Mariah Carey’s Vocals, ‘How I Met Your Mother’ and More|Kevin Fallon|December 19, 2014|DAILY BEAST
And that original score that kicks in as a new-age Millennium Falcon swoops into view is sure to get you going.
Chernobyl Drones, Star Wars and More Viral Videos|The Daily Beast Video|November 30, 2014|DAILY BEAST
Sherlock Holmes is a new millennium sex symbol with books, movies, and TV episodes introducing him to a new generation of fans.
Can Tarzan of the Apes Survive in a Post-Colonial World?|Ted Gioia|November 23, 2014|DAILY BEAST

But is bug protein really any better than traditional protein sources, like chicken, or your go-to protein powder?
Is Cricket Flour the New Protein Powder?|DailyBurn|November 21, 2014|DAILY BEAST
The men stood around bug-eyed and stared incredulously—all but High-Pockets.
Nine Men in Time|Noel Miller Loomis
Both were bitten by the gambling bug in Saratoga and went West, not to grow up with, but to fairly conquer the country.
Hooded Detective, Volume III No. 2, January, 1942|Various
In reality it is only the female which is the lightning bug, for the male is not equipped with any lighting power.
The Wonder Book of Knowledge|Various
Nor does he glow with exalted hopes of a millennium of bliss, or of the beatitudes of a future state.
Beacon Lights of History, Volume I|John Lord
The proverb should read, "It is the early bird that catches the bug," and different birds have different ways of going about it.
The Red Cow and Her Friends|Peter McArthur

British Dictionary definitions for millennium bug

millennium bug

noun

computing any software problem arising from the change in date at the start of the 21st century

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012