"Not Safe For Kids"

-Abbreviation used to describe any kind of media content/material (filled with violence, sex, nudity, and crude language) not suitable for children or teenagers to view.
Daddy Cado: Did you see Borat?

Mommy Pam: Yeah, of course!

Mommy Diana: How was it?

Mommy Pam: It was good. I had a nice laugh but that shit was so NSFK. I will never allow my kids to see it.
by denille April 21, 2009
Not
Safe
For
Kids

A family friendly edition of NSFW(Not safe for work)
"Son - What were you and mommy talking about"

"Dad - Now son mommy and I were talking about something that is NSFK"
by wOrD kInG June 23, 2016
Not suitable for kids
Don't show that video to your son, it's NSFK (not suitable for kids).
by YeezyGeezy April 22, 2018