To "get oystered" is when you get ultimately rekt from peeking a spot or getting one tapped in csgo. Normally occurs when you don't listen to your top fragger.
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"Don't peek it Kru$h! *Kru$h peeks it ~ get's one tapped* Haha scrub! Get oystered!"
"Peek it you won't! *Kru$h shoulder peeks it ~ awper lands the shot and kills him* Damn. He just got oystered. Oh well, at least he dropped an awp."
A small piece of information. Derived from the word ken, used often in the scottish language and is synonymous with knowledge.
Person 1: "Hey I don't get this shit. How do you solve this problem?"
Person 2: "I got that one. Give me some kenlets on this assignment and I'll help you w/ that one."