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JSYK

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 06, 2006


JSYK

is an acronym for the phrase "Just so you know"

JSYK, this martini is delicious

by Cockroach3409 July 13, 2009


JSYK

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 Summer January 04, 2006


JSYK

Just so you know.

JSYK, I'll be arriving at O'Hare about 5:30PM tomorrow.

by jpneal January 08, 2021


JSYK

"just so you know"

like instead of saying something like just saying you could be like just so you know ... like I'm going to cook dinner just so you know ... just saying sounds Rude "JSYK"

by backthefuckupb4ugetsmackthefup August 26, 2017


JSYK

Just So Ya Know

I love you JSYK

by EddyWayne October 18, 2011


JSYK

JSYK stands for Just So You Know.
My friend says it all the time because she thinks she's chill when she says it because noone else knows what it stands for. Then we have to just say it all out. It's more fun to just leave the person hanging by not telling them what it means.

Guy: Woo, Look at that girl in those shorts! Mmm.
Girl: JSYK, She's a huge slut. She's got babies daddies all around here right now.

by Bones77 June 14, 2007