Sillium 

Sillium is the 119th element of the Periodic Table. John Q. Sillius found Sillium on June 27th, 2022, in the town of Mangalagama (Man-gal-a-gama), Sri Lanka. Sillium is also a rare mineral found in the mines of Gazoland.

"Bro, have you heard of the scientist whose Sillium got stolen?"
"Yeah my top spingle, that's kind of an L."

Sillium by Flippor June 18, 2023

sillius 

When someone is being so silly it makes all of us silly

Willius is being so sillius he sends pictures of flowers and shishkabobs

sillius by Annieus February 22, 2008

Silliam William 

The full name of the person commonly known as Silly Billy

basically a fancier way to call someone a Silly Billy

Mannnn, you're being such a silly billy right now.

Excuse me?? have some respect for your elders. That's Silliam William to you.

Silliam William by Efroom August 11, 2017

swilliums 

when u take a shit in ur bare undies and its all soggy and u feel like a total drape

hey daniel i just saw u fucking swilliums it. u stupid dirtball. get a life u miseable asswhipe. jeez daniel , u got some serius prob's bitch.

:)

swilliums by steve schoumander April 30, 2006

Scillium Factor 

The formation of sunrays leaking through stratus clouds. With no pun intended, this phrase was fabricated out of thin air and is now widely used in such places as it's orgin -- Baghdad, Iraq. Other places you may hear this phrase used often is in Colorado Springs, CO. Also referred to as "SF" or some may simply call it, "The Factor".

I don't think it's going to rain because Scillium Factor is starting to take effect in the distance.

Scillium Factor by Imbuidomus Maximus October 3, 2008

Sallium/Manuel 

Sallium Is A Zimbabwe Boy And He Is A Huncho That Likes Terremoto.
His Best Huncho Is BeSide2.0 And He Is Also From Zimbabwe And Likes Terremoto.
(sub to eRa Sallium)

Sallium/Manuel Is A Huncho And Makes 0 Hundos.

Sallium/Manuel by xmat9fan May 12, 2019

Sillimanite 

Sillimanite is an aluminosilicate mineral with the chemical formula Al2SiO5.

Look at this necklace made out of Sillimanite gemstones!

Sillimanite by Sillimanite July 11, 2021