SLS

Abbreviation for Space Launch System. NASA's new moon rocket for the Artemis program, set to bring humanity back to the moon in the 2020's.

Currently the most capable rocket in the world, until SpaceX's Starship launches. SLS is designed to bring the Orion capsule onto a TLI (Trans-Lunar-Injection) course. It was proposed in 2011, as a replacement for the cancelled Constellation program, intended to launch in 2016. It did launch, but only 6 years and $10B overbudget, and is often criticised for this. Nevertheless, it is extremely cool and I can't wait to see it launching crew.

Person: OMG SLS is fucking cool! When is the next launch???

by AvgKspEnjoyer January 3, 2023

SL

Abbreviation of the expression "Social Link" in the Persona series.

We gotta do Makoto's SL now.

We still have Yukari's SL remaining.

by mlgeekmaster December 5, 2020

IB SL Math

A waste of time. You learn derivatives, but it is unnecessary unless you want to be an engineer. Don't take this course if you love your free time.

no just no ib sl math

by sunnyka November 11, 2020

Sl

Say less

Let’s go shop after school

Sl

by Lengtingstyl May 31, 2023

SL

acronym for "Silver Lions" , a currency in the game War Thunder.
the name come from the symbol of the currency, silver lion

this thing is one of the 3 pillars of frustration in War Thunder, the other 2 being the repair cost and the grind

friend: how to earn SL in a B-29?
me: you can't, except if you don't die on the way to the bomb targets

by Hans Freudemann March 3, 2021

SL

A cool god-like mother-fucker that will do your mom and dad (he believes in gender equality). His natural habitats may be your mom's bedroom or ass, respectively he is the kindest and tallest person who will treat you with fairness and dick, his massive dick is said to be 1000000x the size of space and time itself.

"YOOO BRO YOUR ALMOST LIKE A SL"

"Thanks bro, now im gonna go do your mom"

by Azfar1080 November 28, 2021

sl

what i call people with abscesses

Person 1: hey do you have an abscess?
Person 2: yes.
Person 1: good...you are no an sl

by BoobiesOnTheGravel January 8, 2025