This phrase, in perfect grammar is "Oh Really?", but in online lingo, you type it as "o rlly". This is mostly used when you are kind of shocked in a lollerskating kind of way.
Person A: Hey dude I found some awesome stuff downtown!
Person B: O rlly
"it rlly be like that sometimes..." is a term used mainly in texting and sometimes in conversation. often used in a sad contexts to relate to the person jokingly and often doesn't make any sense
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.