nurse a: CODE BLUE, "CODE BLUE, Get a crash cart up here stat"
doctor: "bob's dead"
bob's children after hearing the code: "HOLLY SHIT, I can't wait to collect the insurance money.
this is when you go out to eat, usually with friends, and while in the car on the ride back you have to take a shit so bad you can taste it. You yell out "Code Blue!" This lets everyone in the car know that its an emergency and if they don't pull over right away your going to shit your pants.