You Serious Clark? 

The Phrase: *You Serious Clark?* is appropriately used when someone around you says something so outrageous that you cannot believe they actually just said that.

This phrase was taken from the movie *National Lampoon's: Christmas Vacation*.

Sitting at the table for Christmas dinner, Clark Griswold mentions that he heard a pilot flying over New York spotted Santa Claus, to excite the children about Christmas, but Cousin Eddie found it necessary to respond with *You Serious Clark?*
outlandish claims unbelievable ideas Christmas vacation Christmas vacation

Kayte- I now own Jupiter!
Moira- You serious Clark?
Kayte- Dead serious!

Tom- Will you marry me?
Kayte- You serious Clark?
Tom- Is that a yes?

You Serious Clark? by VintageStarfish December 5, 2009

Are you fucking serious? 

when someone does or says something so stupid and unbelievable that you just can't think of a better answer

Man: *buys 3 toilet paper*
Cashier: "Alright, that will be 45$"
Man: "Are you fucking serious?"

Are you fucking serious? by ThunderTheFurry October 25, 2020

damn ma is it really that serious 😭 

Used to caption short videos that tend to be of people doing something random like dancing, running, shaking rapidly or looking shocked, using the song Roman Holiday by Nicki Minaj, the video in question usually being sped up. Idk why people say this tbh

*sees a video with Roman holiday song*
random commenters : damn ma is it really that serious 😭

damn ma is it really that serious 😭 by twoodle on YouTube May 24, 2019

seriously penny 

A phrase used in south dublin whenever one needs to express shock , surprise , a dramatic expression , can also be said out of nowhere to surprise your friends

person#1: No like he said all this to me and then I knew he wasn’t the one

person #2: SERIOUSLY PENNY

...
person #1: seriously penny ??
person #2: SERIOUSLY PENNY!!

seriously penny by bouffbaby69 May 1, 2019

serious shit 

when a delorean hits 88 and travels through time

Doc Brown "when this baby hits 88 your gona see some serious shit"

serious shit by duderob92 June 20, 2011

Serious Urban Dictionarian 

Someone who puts 100% serious definitions for the words that they submit, when they clearly don't understand that this is meant to be a fun website - not just a regular dictionary

I just witnessed 2 Serious Urban Dictionarians at work and i decided to post this

Serious Urban Dictionarian by Lbayncha1 March 16, 2009

THE INTERNET = SERIOUS BUSINESS

An extremely popular Internet catch phrase. Not necessarily typed in all caps. Sometimes shortened by omitting "THE." Also sometimes used with an intentional mispelling of "THE" as "TEH."

Many people think that having heated debates over the Internet is a pointless waste of time, no matter what the topic of discussion might be. Thus, this catch phrase was born. At times, the phrase makes a valid point. However, there are many people who overuse the phrase, thereby degrading it's merit and humor.

Person 1: I'm right and you're wrong!

Person 2: No, I'm right and YOU'RE wrong!

Person 3: THE INTERNET = SERIOUS BUSINESS

THE INTERNET = SERIOUS BUSINESS by forcryingoutloud August 17, 2006