Top definition
This can mean two different things.

1. Kiss My Fucking Sugar Lips

2. Kill My Fucking Self Laughing
1. I'm soooo cute! Kmfsl♥
2. Did you see that girl get her ass beat? Kmfsl!
by meowmeowkittycat September 08, 2012
Get the mug
Get a kmfsl mug for your buddy Trump.