seriouser 

A better way of saying more serious, as its shorter and definitely much easier to say. It also saves room on tweets.

And then to make the situation even seriouser...

seriouser by Sazily May 2, 2009

Serious as a beaver 

Utmost seriousness. Unequivocal state of demanding careful consideration or application.

Person 1: "Are you serious? Are we really going to this party?"

Person 2: "Yes. I'm as serious as a beaver"

Person 1: "Ok, sorry. I'll get my things"

Serious as a beaver by eduardo_saverin January 25, 2013

Serious drooling 

Much desire, lust or admiration is shown.

We are looking over the car show and the gentleman's club, so we got some serious drooling to do!

Serious drooling by I, Wreckerrr November 12, 2016

some serious honkers. a real set of badonkers. packin some dobonhonkeros. massive doboonkabhankoloos. big ol' tonhongerekoogers.

boobs i think probably

Tw(blackness):i got this new anime plot. basically there's this high school except she's got huge boobs. i mean some serious honkers. a real set of badonkers. packin some dobonhonkeros. massive doboonkabhankoloos. big ol' tonhongerekoogers. what happens next?! transfer student shows up with even bigger bonkhonagahoogs. humongous hungolomghononoloughongous
disclaimer: i did not make this

some serious honkers. a real set of badonkers. packin some dobonhonkeros. massive doboonkabhankoloos. big ol' tonhongerekoogers. by u/yanzin_fan_of_altair February 11, 2020

Lethal serious 

If something is so lethal or so serious the one word just doesnt cut it. It's like when you take 40 chats and are off your face and your on some buzz.

These chats are lethal serious

Lethal serious by I amlethalilovechats August 10, 2019

serious business 

An expression said, often in a sarcastic, humorous way. Can be used in just about any context to describe something in a nonsensical way. internets

The internet is serious business.

serious business by Kyle2252 September 1, 2008

Shut the fuck up about furries seriously just shut the fuck up day 

On December 23, you must cease all arguments, memes and conversations about furries. This ropes in anti furries, too

Seriously just shut the fuck up about beating furries or being a furry and partaking in these god awful days

"ewww furry art, go kys"

"Careful, you aren't allowed to talk about furries on Shut the Fuck Up About Furries Seriously Just Shut the Fuck Up day"

Shut the fuck up about furries seriously just shut the fuck up day by anonynonmous December 18, 2020