Sometimes LOL doesn’t work for me. Sometimes something is so funny that I have to write:
Lolatdotrhntfwetpimg,ifa—o,twaf!
Laugh out Loud and then double over trying really hard not to fart while easing the pain in my gut: Shit, I farted anyway—oops, that wasn’t a fart.
But I like to shorten it to O'TWAF (Oops! That wasn't a fart!)