TST stands for 'the scorch trials' which is the second book and film in the maze runner series written by James Dasher.
Person 1:" Have you seen TST yet?"
Person 2:"No but I really want to!"
by Bloodyinspired April 27, 2016
The Silent Treatment, when some one chooses to blatantly ignored you and avoids conversation even when face to face
avoid the Silent treatment ignoring
"I guess I'll have to issue TST"
"TST? What's that?"

"This... *commences to ignore person and avoid talking to them for a week*
by KittenOfTheWest April 08, 2016
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