Top definition
"Just so you know." Excellent for text messaging, MySpace and most importantly, daily dialogue.
Kate: Jsyk, you've gotten fatter over these holidays.
Steph: I eat my feelings okay.
by jsyk, it's Ursula January 07, 2008
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Apr 22 Word of the Day
When you eat dirt for the first time and leave your family to build a shack in the woods
Bro since I got dirtpilled on Tuesday I have made sooo many worm friends and made them soo many little houses to get married in. Me? Lonely? No you’re the lonely one u lawn owning freak
by ecogoth December 30, 2020
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The "new" FYI. FYI is old school. JSYK (Just So You Know) is a more casual, friendly means of giving your friends and colleagues semi-useful information.
JSYK, it wasn't Roy, it was Isaac.

or

JSYK, I checked on that thing about Phil Collins and the drowning, and it's totally an Urban Legend.
by IsaacN January 05, 2006
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4
JSYK is an abbreviation. It stands for "Just So You Know". It is not used commonly, but it saves time from typing it all out.
JSYK, I'm not going to Herman's party.
by Shy_Ghost_178 November 10, 2020
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6
Internet lazy phrase: "Just so you know..." Simply invented to save keystrokes.
jsyk, i rarely stay up past midnight.
by Brian February 19, 2005
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