I posted on another popular message board years ago, but during the time I was creating a new user name there the BP oil spill happened in the gulf.
I heard a news broadcaster on CNN refer to the oil spilling into the Gulf of Mexico as raw Louisiana Crude.
I liked the expression and did think the name was raw even though it came from a horrible natural disaster, and I adopted the name Louisiana Crude on that message board.
I later shortened it to simply just Crude making it easier for people to @ mention me and so forth.