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1.
An organisation of catholic youth groups worldwide that maintain and organise a variety of events ranging from weekly prayer gorups to workshops, retreats and festivals. It Is a great way to meet new people, enjoy all the activities and music, and get closer to the catholic faith.
Rachel: Hey, Phil? Wheres the closest Youth 2000 group?
Phil: theres one in Belfast Rachel!
by some irish bloke July 03, 2010
 
2.
An extremely creepy cult posing as a Catholic retreat. You will never stop going to church once you get there and when you leave you will reject your friends and start calling everyone 'fornicators'. They have a "special event" which is lighting of candles and the monks and priests coming around with a piece of cloth which you smell. Apparently this cloth has the spirit of Christ in it. I'm not sure what this cloth has in it but it makes you feel buzzed. It also causes many people to feel extremely happy or just start crying. But afterwards you end up saying "Praise Jesus!".
I went to Youth 2000 and came back a complete freak. I was extremely brain-washed. I never want to go near that place again.
by Fuck yeah it's Meredith May 16, 2006