most commonly used in conversations that are over social networking sites (facebook, myspace) or another form of internet communication (im, email)
it is usually used when one person is trying to get rid of another or offend them in some way
Sally: haha ur such a tool jkjk
Mike: ya Tom, lololololol
Tom: stfu sally
Sally: wtf y do u hate me so much?
Neil: because hes secretly in love with you
Tom: gfed ur not funny
Mike: neil nobody likes you, fuck off
Tom: ur not laughing now, eh neil?