Big. A very large example.
Scene: A very large Maine Coon, Tom Cat is seen in the yard across the street.
Bubba>Look at that huge cat man, He must weigh 20 pounds.
Bobby-Ted>I bet he's bigger than that. I've never seen a cat that big. He's huge... He's a MOKER. I'm gonna try and catch him. I've always wanted a huge cat like that. I'm gonna name him MOKEY the MOKER.
Bubba: You better leave that cat alone or you'll get hurt! Bobby-Ted, you're gonna get your eyes scratched out by that big ol' MOKER.
Bobby-Ted: I guess you're right, Bubba. He's such a MOKER I bet he eats dogs.
Bubba: Yeah... big dogs!
Laughing (or Laughed) Silently To Self
My friend, Frank, fell down on a pile of dog sh*t... LSTS
Instead of saying LOL which is what most people would have actually done in this instance - because Frank is my friend and I am a compassionate person, I LSTS.
Most often, LSTS is the most honest term to use - as most people use LOL when they really aren't making any vocal noises at all.