Sendero Luminoso 

A Maoist guerrilla insurgent group formed in Peru in the late 1960s as a splinter group from the communist party of Peru; is among the most ruthless guerilla organizations in the world; seeks to destroy Peruvian institutions and replace them with a Maoist peasant regime; is involved in the cocaine trade; Shining Path has been responsible for 30,000 deaths.

Sendero Luminoso is Spanish for "Shining Path."

Sendero Luminoso by Dancing with Fire September 20, 2013

semiex 

This is an on again - off again boyfriend or girlfriend.

Tammy hooked up with her semiex again last weekend.

semiex by I, Wreckerrr March 15, 2021

sender supremacy 

One's bias towards their own opinion—as a result of being the original poster, sender, or equivalent—on social media forums, especially when accompanied by a sense of self-confidence or entitlement by the sole act of sharing their opinion on said social platform.

Why was the sender supremacist certain that the Earth is flat? Well, it's because he sent it.

Reddit is widely considered to be the best example of sender supremacy. Either your viewpoints must entirely align with that of the sender, or you are cast off as an unknowledgeable internet troll and promptly downvoted to oblivion.

sender supremacy by thewordcreatorpro January 6, 2021

Sceniebopper 

little kids who try to be scene but fail.
They usually run around the mall in tiaras and moon boots.

omg the scenieboppers are here... Run!!!

Sceniebopper by Moonshinaz December 18, 2007

Itadaki Seieki 

A quite popular, yet underground, anime of two characters, Mari and Kanzaki, who together overcome obstacles like self image/self worth, trust, and family history through the power of love.

"Have you watched Itadaki Seieki yet?"

"No, is it good?"

"It's fantastic, I can't stop rewatching it."

"Is it hentai?"

"No."

"Are you lying?"

"Yea."

Itadaki Seieki by IDEKMG June 29, 2022

seneca ridge 

A school where rich kids and poor kids meet up and call each other hoes this is mostly full of rich white people that get made fun of by the poor Hispanics by the rest of the population and everyone calles each other faggots and hoes plus this fucking school doesn't have any windows

I would hate to go to Seneca ridge

seneca ridge by Jake Roon November 28, 2016

sendeh 

Sendeh is a derogatory term used to describe Indians who often smell bad and dress ugly. It is often used to express frustration with low skill or incompetent Indians workers who claim to be smart and competent.

A Sendeh stank up the kitchen at work.

sendeh by Doselani June 12, 2020