MSTS 

Mississippi State Titty Shake. This is the dance done when MSU beats UF. It involves jumping up and down while chanting "Mississippi State....Mississippi State."

Hey Clunt, did you just see your cousin doing the MSTS?

MSTS by Cleed October 28, 2007

MSTS 

Known among railroad nerds, this computer game was released in 2001 and officially called Microsoft Train Simulator. Now it is overused and still very slow on many computers.

Railroad nerd: Hey man, did you get the new update for MSTS?

Friend: No, I can't get it to run on my computer.

MSTS by Traindriver June 6, 2009