While not as imposing as its larger AT-AT walker cousin, the AT-ST nonetheless served as a significant addition to the Imperial side of battlefields in the Galactic Civil War. The two-man craft is lightly armed with chin-mounted laser cannons, and side-mounted weapon pods. The two legged craft, dubbed the scout walker by many, serves as a reconnaisance and patrol vehicle, often flanking approaching AT-ATs and mopping up infantry that sneaks past the larger walkers. The Imperials used AT-STs in both the Battle of Hoth and the Battle of Endor.
sts means sent to streaks. You see sts in Snapchat were people compete to have the most streaks. Now is you get a sts you know they have or want a streak with you.
A, typically, gaming abbreviation meaning "Sucks to Suck" used whenever someone does something unfortunate such as die in a video game. Could also be used in real life situations if someone does something bad like fall down.
A common abbreviation for the ever popular arcade fighting-game Super Street Fighter 2 Turbo made by Capcom in 1994, and using the Capcom Play System 2(CPS2) -arcade board. Mostly used by professional / tourney -players.