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An Abbreviation for "Just To Let You Know" or "Just Like" used in texting or Instant Messaging.
person 1: hahah like Squidwin from Spongebob.
person 2: jstlyk, his name is Squidward.
person 3: you guys like Spongebob?
person 4: jstlyk.. its cool. so shut up, yeah i watch it.
by GEMMA IS THE BESTT January 17, 2008
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