"LOL" and "LOLZ" are often spelled all uppercase, but can also be spelled "lol" or "lolz". Both versions mean the same thing. Just be careful not to type entire sentences in uppercase, as that is considered rude shouting.
Example of LOLZ usage:
- (first user:) OMG! My cat just walked across my keyboard and launched my email!
- (second user:) LOLZ! Maybe kitty is checking on his eBay bids! ROFLMAO!
The LOLZ expression, like many cultural curiousities of the Internet, is a part of modern English communication.
Read more internet abbreviations and shorthand expressions...