Debilitating condition which makes one respond to pretty much everything that's being thrown at them with "LOL" or "LMAO" either in all caps or in lower case letters.
Friend 1: "Miyu syndrome, what the heck is that?"
Friend 2: "LOL"
Friend 3 : "i.e. what friend 2 said"
Best girlfriend ever, amazingly beautiful and smart. Fun to be around. Makes you laugh. Good sense of humor. Likes Nathan Gerau. Nice, really pretty. Says random things. Likes the Alabama football team, and really pretty!!! :)