Skip to main content
Urban Dictionary Merch
Your favorite words on things you can wear, drink from, read, or give to a friend.
The Urban Dictionary Store sells gifts you’ll have to explain.

Social Flat-line 

A term stemming from two seperate lexical choices one of which is 'Social' to be defined as relating to human society and its members and 'Flat-line' which is a medical term to show the absence of heart contractions or the disappearance of the rhythmic peaks displayed on a heart monitor.

In this sense the conjoined term means the 'dead sector of society' So to speak : Nerds, emo's, paedophiles and so on, people who are marginalised and ostracised from society.
Nerd 1: Dude I have a girlfriend now

Nerd 2: No way

Nerd 1: I'm heading off the Social Flat-line
Social Flat-line by yami100 July 21, 2010

flat as a line 

The flattest line you’ll ever meet. Really socially awkward but also not at all it’s really weird. Super nice and will stuck with you for 10 years. What she doesn’t have in butt, she makes up for in personality
“Have you seen flat as a line today?”
“Yeah she’s so flat”
“But her face makes up for it”
flat as a line by Hamitha December 6, 2020

flat liner 

A person who has died, referring to the heart monitor "flat lining", as can be seen in any film featuring an emergency room death.
When Ray makes love to a women, she may say, "it was like sex with a flat liner!"
flat liner by Mark J. July 16, 2008

Flat Liner 

A Gun Used To End Someones Life (The Name Is Self Explanatory)
"Don't Make Me Run Up On Ya With That Flat Liner"
"Yo This Nigga Needs To Die, Ima Hit Him With That Flat Liner"
Flat Liner by HillByNature December 30, 2012

Flat Liner 

An attempted one liner that is not funny at all.
*Kid sees another kid hanging from monkey bars*

"Hey, how's it hanging?"

*crickets*

"That's the definition of a flat liner."
Flat Liner by ADR767 September 9, 2013

Flatliner President 

An increasingly popular nickname for the 45th POTUS as he nears the end of his one and only term.
Thanks in great part to his mismanagement of the pandemic, the Grabber in Chief will from now on be known as the Flatliner President.
More from Urban Dictionary
Being ignored by someone when making a statement or asking a question. Also known as blanked and turfed.
Person 1: Did u watch ** last nite?
Person 2:......
Person 3: O no u got aired!
aired by Pietro February 9, 2005
Word of the Day on October 10, 2026

piddlefart

Instead of doing my homework, I decided to piddlefart around for two hours.
piddlefart by Rene April 25, 2005
Word of the Day on October 9, 2026
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
Load more