lolr

stands for: Laughing out loud, really;

since so often we say "lol" without actually laughing, now an easier way to let someone know you 'actually' laughed at what they said, you can use "lolr" for those less common moments when a text actually makes you laugh out loud.

Text between friends:
Friend: *sends meme* this is exactly what you do!
Me:(actually laughing) lolr, shut up!