seismonic 

A misspelling of the band Semisonic, known best for their hit "Closing Time"

Jack: Yo dude I totally heard this cool song from the band Seismonic! *starting to sing the one part of closing time that everyone only knows*
Greg: Um do you mean Semisonic?

seismonic by This Name's Taken Already December 3, 2019

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

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

Ego-Seismic 

the belief and/or personality that wherever you are or live is immune to earthquakes simply because you are present there

Link has an ego-seismic personality and thinks that the only reason North Carolina never had an earthquake when he was there simply because he was present.

Ego-Seismic by GiantPandaKing December 13, 2012

Seismic Toss

A sexual act in which the male gyrates his pelvis in a rotating motion while recieving oral sex.

"Dude, last night I gave my girlfriend a seismic toss while we were listening to Prince!"
"Niiiice."

Seismic Toss by Master Machoke February 13, 2009

Seismic fart 

An earth shattering fart so disgustingly raunchy and ratchet that one must feel bad for the chair and/or wall that once stood, before the catastrophe occurred. In some cases the 'Seismic fart' can destroy an entire study session, leaving behind trace amounts of fallout that can last for days.

Devin: Hey Luke, what was the atomic weight for Germanium?
Luke: Oh yeah it was --
*Seismic fart rips through the air*
Luke: Never mind that, we need to search for survivors now!
Devin: agreed!

Seismic fart by lucky spice February 6, 2013

seismic rattle 

When a person motorboats another's ass cheecks vigorously. Especially used when whipped cream is involved or chocolate syrup.

Yo nigga that girl be so tight i would seismic rattle that fine ass!

seismic rattle by Derek Jeters June 4, 2010