I have always been challenged in finding ways to express my laughter on the internet. Although I have attempted to use it before, "lol" seems too weird and overused, too mainstream. "Haha" seems lame and doesn't really reflect true laughter. After discussion in the chat, The Sandman created and the chat radified the new expression for laughter,
AIUJEMMOFDIMD
-----An involuntary utterance just escaped my mouth originating from deep in my diaphragm.
Use this as much as possible as it is the perfect expression for laughter.