Eilishism 

The religion of the Billie eilish fandom and hopefully to-be fandom name. When you all hail the KING Billie Eilish. Note: our fandom name isn’t: avocados, eyelashes, or anything like that, we don’t have one so please don’t call us that

Person: im going to a catholic camp, wanna go with?
Me: I can’t, I’m not catholic, I’ve converted to eilishism and am now eilish. ALL HAIL KING EILISH
Person: wait I wanna join.

Eilishism by @bileyelashtingz on ig June 14, 2019

Eilishism 

A uprising religion among the Billie Eilish fandom (The Avocados/ The Eyelashes/Eilish Army)

They worship Billie as their queen and have found peace and comfort in her love for her fans and melodic tunes.

I have completely converted to Eilishism.

Eilishism by 🥔🖤🌯🥑 June 12, 2019

Ellisism 

The practice of watching people in towels as they go to shower, without their permission

She likes to practice in Ellisism.

Ellisism by Extra Virgin March 20, 2021

Englishisms

the making up of words that doesn't exist particularly in the English language(vocabulary).

Gus: Yo homey! you should have seen my scatterphlat swing yesterday! it was sick!

Nic: Please, just stop! I'm tired of your englishisms. They are as dumb as you are.

Englishisms by pinchharmonicz January 20, 2011

Eilishious 

If you're eilishious, you're as delicious and attractive as Billie Eilish. Everyone wants you 'cause you're so hot and you're the coolest girl of the school. You just are as Billie.

'Do you know Daisy?'
'Sure, she's so fucking eilishious!'

Eilishious by 512 GB April 25, 2020

Eliscism

Very bored until you could die of disbelief.

Sajad told somebody he is undergoing Eliscism

Eliscism by Menggo March 8, 2022