Carmen standard time, synonymous to being late 30 minutes to 1 hour. First coined in Toronto, Canada. Named after a local resident, CST has been adapted and spread to other provinces. The handiness of the term has been intrigal to its continued popularity.
Person 1: when's everyone arriving?
Person 2: noon CST
Person 1: so 12:30-1?
by bladrisimmortilis February 19, 2017
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CST:Compulsive Shit Talking

When you shit talk so much to someone with or without realising it for no specific reason
Me: Hey man

Him: Shut the fuck up cunt I don't like you kill yourself

Me: Dude u suffer from CST
by This Is The Meaning August 6, 2017
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Call tech support!!! Your a CST student you are tech support!!!
by Dumb Student October 31, 2019
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Charvie Suka Titit (Another way of saying How are you)
Brian: Ayoooo, haven't seen you in ages, CST?

J: I'm good lol
by eetswacuz April 19, 2023
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acronym for *chuckles silently to self*
it's like lol, eccept it's what you're actually doing when you say that you're 'lol'ing. i mean who really laughs out loud about something someone said to you online?
me: my hair is being crazy today
you: crazy as your mom last night?
me: csts that was a good burn.
by heybumitsme March 22, 2009
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Covid Standard Time.

A new Time Zone which took effect in 2020, throwing Easter Standard Time, Pacific Daylight Time and all the rest into a state of irrelevance.
His appointment was Wednesday at 10:15 CST, which meant he might show up on Tuesday or Friday, a week early, two months late, anytime, really, because what is time now? Covid had revealed time as a hoax of some sort, whether perpetrated by the media or the universe he would figure out later, yesterday or never.
by Monkey's Dad July 27, 2022
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