sefis 

a seed, or the offspring of something.

Clown sefis.

Meaning you were created from a clown.

sefis by train999wreck May 24, 2011

Seismic Aqueous Waveform

An abnormally massive wave.
{On November 26, 2019 off the coast of Oregon (United States), 11 different satellite instruments designed to measure wave height, wave length and the direction of ocean swell systems, relayed real time and pattern delayed SAR and altimeter data providing conclusive evidence of the first ever observation of a Seismic Aqueous Waveform (S.A.W.). In the early 1800's, Sir James Clark Ross and British Naval Officer Count Fluervo of Korkyville presented an original postulate for Seismic Aqueous Waveforms (S.A.W.) suggesting that chaotic and abnormal deep sea land masses (what we now refer to as tectonic plates) were capable of colliding and dispersing an exponential quantity of kinetic energy resulting in oceanic swells up to 1950 feet high (conditions unknown at the time proximate to the mathematical equivalent/scale estimated during the Paleozoic Pangea fracturing events, circa 350 million years BC). The magnitude, span, volume and force of a S.A.W. is much greater than a Tsunami, hence a S.A.W. is also commonly referred to as a 'Supernami.'}

1. In 2019, a Seismic Aqueous Waveform was detected about 100 miles west of the California/Oregon coastline.

2. {Water cooler discussion begins} "Did you see the size of that Tsunami that nearly hit the California beaches this week?" {Conversational partner replies} "My friend, that was not a Tsunami, it was a S.A.W,, also known as a Supernami."

3. Sir James Clark Ross and Count Fleurvo of Korkyville were finally recognized for their research and position on Seismic Aqueous Waveforms (S.A.W.).

Seismic Aqueous Waveform by Charitable Disguise December 19, 2019

Seiso 

清楚 or せいそ
Meaning clean, tidy in Japanese.

Have been adopted by VTubers to mean Wholesome. Seems to be used ironically in many instances.

"She's a psychopath!"

"What do you mean? She's totally seiso!"

Seiso by Notayler September 12, 2020

Ego-Seismic 

Thinking that earthquakes revolve around you.
From Rhett & Link's Good Mythical Morning.

Link: 'I will gladly accept being a Ego-Seismic, wherever I go earthquakes flee!'

Ego-Seismic by H3NR7 June 12, 2012

Seeism  

1.If you see it, then you believe it.

2.Seeism is the simple idea that nothing
exist without visual confirmation.

I don't believe that John kissed Mary. In this case, I am a firm seeist. I'd have to see it to believe it.
Humans have been practicing Seeism ever since they opened their eyes.
Seeism is the oldest form of confirmation.
Seeism is practiced by every living thing, with eyes.

Seeism by Seeist April 19, 2009

Selfishing 

Self-ish-ing: Occurs in the social networking world. An act of calling attention to one's self by posting a vague comment that entices people to ask you to elaborate.

It's a selfish post intended to fish for attention.

These are examples of selfishing posts:

1) "Man you wouldn't believe what just happened to me!"
2) "Oh my God. I can't believe this. Please send prayers..."
3) "Gee, I can't believe that someone would hurt someone like that"

Selfishing by MaxieD May 12, 2011

selfish selfie

when a celebrity takes a nude selfie and won't let us look at it

I wish Jennifer Lawrence would quit taking those selfish selfies

selfish selfie by henro50 September 13, 2014