Stelmar 

A friend who constantly steals from you but never apologises.

You took my pen you stelmar

Stelmar by CT18K September 10, 2020

Stellaris

Breaking the Geneva convention

"Wanna go to the bar later?"
"Nah, I'm playing Stellaris, there's a xeno species that needs purging"

Stellaris by DaringD5 May 26, 2020

less-than-stellar 

Less than perfect; not meeting expectations.

So far, the guitar classes I've been taking have been less-than-stellar since I haven't learned a single thing.

less-than-stellar by ExpiredCabbage June 1, 2016

stelmaszek 

The last name of very few Americans and Polands. If you have this last name you're most likely polish and burn pretty easily in the sun. You also love paczkis and when you tell people about them no one knows what the hell you're talking about. It's a different spelling for stemaszki which means carriage maker. People also never know how to pronounce it.

"What's your last name?"
"Stelmaszek"
"Stel... what???"

stelmaszek by Bigsexyjellyfish April 11, 2017

Stellar Stone 

A winner game development company founded in 2000. Created some of the best games ever, including Big Rigs: Over The Road Racing and Midnight Race Club: Supercharged.

Stellar Stone's "Big Rigs: Over The Road Racing" got a 1.0 (Abysmal) score on GameSpot.com, the lowest score in GameSpot's history.

"YOU'RE WINNER!"

Stellar Stone by BBgamerUK August 19, 2012

stellaris

The game about eating small civilizations and then becoming an empire to save ur species from the unbidden

You are in a Stellaris

stellaris by LandoBeast June 7, 2018

Stellard 

Totally intoxicated and anxious to pick a fight with anyone
From the lager brand Stella Artois

"Get him in the police van ...he's Stellard"
"What's his problem? ...is he Stellard?"
"He thinks he's Artois ...but he's Stellard"
"Drunk and disorderly? ...No he's completely Stellard"

Stellard by Marshallasthefish December 10, 2007