Definitions by Missy Avery

SMK 

Meaning: smacking my knee

When an individual laughs so hard and begins to smack their knee.

I laughed so hard I was SMK

That girls outfit made me SMK

Judy: (after laughing out loud) "SMK"
Jane: "what does that mean Judy"
Judy: "I'm smacking my knee because you have me laughing so hard!"

SMK by Missy Avery January 25, 2014