Stellular 

Out of this fuckin' world

Adam had some killer stellular moves in bed.

Stellular by MaryJane Houston August 31, 2018

Stellular 

Super and stellar as defined by Victoria

I would be stellular if my fish didnt die

Stellular by rocketfoot21 October 21, 2010

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

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