People who support Justin Bieber, a 15 year old teen sensation. the word belieber is Bieber and Believer put together. there are over 1 million beliebers around the world. Justin appreciates them all greatly.

A 'belieber' is a fan girl of teeny bopper sensation Justin Bieber. They are usually between the age of 10-15. A lot of them spend most of their life on Twitter where they:
-Tweet about how much they love Justin Bieber
-Shout-out other 'beliebers'
-Use a lot of tags like #ifollowback or #teamfollowback.

Other twitter users who are not beliebers (and/or above the age of 15) get rather annoyed by the insane amount of 'beliebers' on Twitter and counter act with tags like #Justinbeibersucks.

Beliebers are also well known for fainting at Justin Bieber concerts/appearances. They are also well known for covering their room and school books with pictures of Justin Bieber.

Girls (and some boys) of all ages who are sexually attracted to the sex god, justin bieber

A fanbase of psychotic, perverted, close-minded, slutty 13 year olds that worship Justina Beaver like she’s God and act like she’s the hottest, most precious thing to ever grace the Earth. They will usually cover up every bad thing she does by saying they’re just rumours when she was caught doing 95% of them on camera and if you say anything even remotely critical about their idol, they’ll start sending you death threats.

Belieber fans of Justin Beiber who are usually between the ages of 8-12 and female. If you say anything even remotely negative toward Justin they will send you death threats via the Internet, but most of them will not say anything bad when their parents are around. They don't want to get grounded.

I came up with "Belieber Tease" - someone who claims to be intelligent, but on further investigation, is a diehard fan of the infamous Justin Bieber. Usually comes attached with various forms of "xxx" or "xoxo" in their social network usernames and IM names. Beliebers facebook posts, tweets, or IM messages also usually come laced with hideous spelling mistakes, and illegible forms of colloquialism and colloquial language.

A belieber is a person who believes on Justin Bieber when every one else thinks he will fail.