KYFMS 

Keep Your Fucking Mouth Shut. First rule of pranksters.

"Jamie got into trouble for letting loose those thousands of grasshoppers in the basement!"
"Well yeah, he violated KYFMS."

KYFMS by tripzilch August 15, 2009

kyms 

keep your mouth shut

STFU MOFO and KYMS

Shut the fuck up mother fucker, and keep your mouth shut!

kyms by EvilAngryPissedOffBoy December 14, 2006

Kyfs

Kill your fucking self.
A word used by Bitches to attempt sounding cooler then another person.

-Girl over hears conversation-
Yeah! OMG Justin Beiber is soooooooo cute!

Girl walking by mumbles...Kyfs

Kyfs by Boss of the Boss September 12, 2010

kysms 

kill yourself myself

I'm going to kysms

kysms by Definitely not FreedomB September 11, 2018

Kyfished

When a blobfish catfishes you.

Steve man I can’t believe you got Kyfished!

Kyfished by Homophones August 3, 2020

KYMS 

Keep your mouth shut

KYMS or the feds will catch us, do you understand? I can't go to prison!

KYMS by Mari Mari December 11, 2009

kymfs 

means kill your motherfucking self

A modified version of kys.

Stacy: You know your bf's a fuck boy, right?
Brittany: kymfs bitch

kymfs by yewenowen October 30, 2017