Agreeing to something
Boy: Yo this bitch always wearing the same shoes and her hair look ratchet asf
Friend: Yo thats dead facts bro
Friend: Yo thats dead facts bro
by Xanarchy October 21, 2017

He tried to tell me that people can digest lactose until age 25, at which point they become intolerant, unless they've consumed enough milk before then. I said, "stop feeding me Matt Facts"
by Coogrrs July 7, 2016

"Angered by the media's portrayal of inauguration crowds, President Trump's new press secretary, Sean Spicer, espoused a few easily disproved facts during his first news conference — eliciting groans from critics wary of four years of what Trump adviser Kellyanne Conway referred to as 'alternative facts.'", as reported by CNN.
by Indian on Indian Road January 22, 2017

Randomly interrupting a conversation with a complete random lie to try to convince as many people in the room that it is true.
If you detect an Untrue Fact you reply saying "Untrue Fact yeah?"
If you reply saying something like "seriously mate?" your a fucking idiot.
If you detect an Untrue Fact you reply saying "Untrue Fact yeah?"
If you reply saying something like "seriously mate?" your a fucking idiot.
Here lads did you know in 2003 Italy was the first country in the world to successfully clone a horse that is capable of understanding basic algebra?
................Really?
No "Untrue Fact" you dick!
................Really?
No "Untrue Fact" you dick!
by Leeto.and.HarveyMilk November 24, 2010

Jim: If you drink more than 15 Red Bulls in a row you'll have a heart attack.
Tom: Definitly Not, thats a Jimmy Fact.
Tom: Definitly Not, thats a Jimmy Fact.
by Jimmy8085 May 16, 2010

Any statement that is true regardless of paradox. Often used by egotistical know-it-alls. Usually half human and half god.
by Stallion216 April 29, 2008

by ERK404 May 4, 2010
