Belieber 

1. A Person who worships Justin Bieber.
2. A Person who is obsessed with Justin Bieber.
3. A Hypocrite.
4. A Person with a very low IQ.

5. A Very annoying freak.
6. A Person who is infected with a deadly disease called "Bieber Fever".
7. An Idol Worshiper.

Belieber: Stop hating.
Disbelieber: Don't tell me what to do.
Belieber: No. You are going to stop hating.
Disbelieber: You will never get me to stop hating.

Belieber: Selena, I hate you. Go to Hell.
Disbelieber: You just told me to stop hating and yet, you go on hating others. You are such a Hypocrite.

Belieber by Bieber Hater 009023748 September 28, 2013

I can't believe it's not but-her face. 

When a person has a killer hot body but person's face isn't even good enough to be a butter face.

Ed: She's got a serious body on her but she's got the worst case of but-her face I've ever seen

Dave: Dude, she's got an I can't believe it's not but-her face.

I can't believe it's not but-her face. by hcd631 June 29, 2011

Belieber 

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.

#bieberfact he said the best thing about his fans is that we all stick together as one big family. RT if you are from the belieber FAMILY

Belieber by Smashley91 July 8, 2010

beaver believer 

Oregon State University fans who know that the Beavs kick mad PAC 10 ass. They also know that the ducks and their fans are whiny crybaby bitches who can't handle the fact that the beavs kick their asses every year!

Those beaver believers were so excited to kick the ducks asses in the civil war.

beaver believer by *Valerie* January 6, 2008

Beliebers 

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

"LOOK AT JUSTIN BIEBER IN THIS PIC, UNF. NO WORDS CAN DESCRIBE HOW SEXY HE IS!" - Beliebers

Beliebers by SwaggyieBieber August 12, 2012

Unfucking Believable 

Something so unbelievable it's incomprehensible or something that is hard to believe.

Being abducted by aliens is so Unfucking Believable.

Unfucking Believable by Nichole McKnight September 26, 2009

True Believer 

A person who earnestly believes in something, despite overwhelming scientific evidence to the contrary. Usually used as a derogatory term to imply the lack of critical thinking and/or intelligence on part of the true believer.

Billy Meier has his own little UFO cult of True Believers

True Believers can range in their beliefs from the spiritual (Tarot, Astrology, Chi, etc.) to political (Holocaust Denial, Jews did WTC, JFK was killed by the government, etc.) to medical (Homeopathy, Vaccine causes Autism, etc.) and on to almost any other system.

True Believer by Type36 October 23, 2007