To snort out loud.
Steven: Why did the boy fall off the swing? Because he was hit by a fridge.
Jack: *SNORT* Hahahaha! Damn it!
Steven: Haha, I made you snort out loud.
Jack: Yeah... snol.
"msn slang" for sniggered out loud. A smaller and less explosive version of "lol".
e.g snol worthy, snoling, snolled.
person 1 - *something snol-worthy*
person 2 - ha, i just snol-d
person 1- snol