Baddi Nazzil el Sama 3al Ared - بدي نزل السما عالارض : Lebanese Slang, of unknown origin. Meaning: "I want to bring the sky down to earth". This slang is used to infer great anger which makes the person try the impossible to change the situation.
Literally means: "This is a day when the sun did not come out"
Usually used when the day starts badly and all the wrong/bad incidents keep happening.
Sample conversation:
Person 1:Oh, it's not my day today, I woke up late today, there was no water or electricity at home, and on the way here i got a ticket, then my pc crashed .. oh .. it's all just soo bad.
Person 2:Hey, what's all this ... dah youm matel3etloush shams.