Laughing out loud zillions of times like a moron. Skinny, tall, white males in their early twenties do this. They tend to post "LOLZ" on other people's Facebook walls while interrupting a conversation between other people and pretend they patented the phrase. Really, the term "LOLZ" is just another way of saying they are lacking down below. LOLZ
Fred: I saw a funny commercial the other day, it made me laugh.
Juan: Was that the one with the big dog?
Fred: Yea, that was it!
Andrew: LOLZ! Hey guys, can I be included in this conversation?