The term "Murphy" is a common Irish surname, which may have originated from the Gaelic name "O'Murchadha," meaning "descendant of Murrough." It can also refer to Murphy's Law, an adage that states that if something can go wrong, it will.
Usage examples
Murphy's Law states that anything that can go wrong, will go wrong. For example, if you forget your umbrella at home, it will rain heavily that day.
Jack experienced Murphy's Law when he was late for an important meeting because his car broke down on the way.
According to Murphy's Law, if you drop a piece of toast, it will always land butter-side down.
Sarah always keeps a spare key hidden outside her house because she knows Murphy's Law - if she forgets her key, she won't be able to get in.
Murphy's Law seems to apply when you're in a rush - for instance, if you're running late, you'll hit all the red lights on the way.
A new Queen size murphy bed in the living room, as well as a new flat screen television make this a great room for a couple or a family. (oceanterrace.com)
This River Mountain Lodge studio is a spacious 435 square feet and features a queen murphy bed with a queen sleeper sofa and one bathroom. (wyndhamvacationrentals.com)
This unit has just added a Queen Size murphy bed, making it one of only 2 6 person units on the 2nd floor.See Location (oceanterrace.com)