[citation needed] 

When you want someone to prove what they just said. Commonly seen in bad Wikipedia articles.

1: "Apparantly, the Greeks invented pudding!"

2:"citation needed"

[citation needed] by RussellLawliet December 31, 2011

citation needed 

Wikipedianese for 'bullshit'.

Jade Goody's death triggered an outpouring of grief across the United Kingdom citation needed

citation needed by Lord Grimcock February 7, 2010

Citation Needed 

A disclaimer for any time you quote something from Wikipedia as fact. Acknowledges that it isn't the world's most "reliable" source, but it's still good enough for you to use.

Drew: I heard the old Red Ranger from Mighty Morphin' Power Rangers is gay, citation needed.

Cody: Yeah, I heard that elephant populations have tripled in three years, citation needed.

Citation Needed by SIRdroosef May 22, 2009

citation needed 

One of the Wikipedia's most used phrases. Means that the wikipedian who wrote something before it, could be putting his/her own point of view or even lying.

Mourinho is going to be a manager for England national soccer team. (citation needed)

citation needed by abdullais4u January 4, 2008

Citation Needed 

What you say to some dumbass motherfucker when he pulls some stupid shit out of his ass. Comes from Wikipedia.

Ben: The Sikhs control all the worlds corn.

Jack: Citation needed.

Citation Needed by Ganondox September 24, 2017

Citation Needed 

To be said aloud when you think you're being fed bullshit.
Can also be used when using hearsay as fact.

Stacey: OMG did you hear that Shanna is pregnant?!?!
Amy: Citation Needed
Emma: You got pwned

Amy: I heard Paul and Josie are going out now.. Citation needed.

Citation Needed by AmyWamyLamy November 24, 2010

citation needed 

The single most pointless addition to Urban Dictionary. On a site where people rant about how gay something is, why is "proof" required? Give me a fucking break. This isn't exactly a website you'd cite on an English essay, stop that shit.

now whenever someone writes about how shitty Lil Wayne is, they get a "citation needed", as if that actually needs more proof

citation needed by redillious April 20, 2011