A
slang term used in the
fashion and entertainment industry (and often in the pro-ana community) to describe visible chest bones in a
female due to extreme thinness. Not used with regard to the side of the body but specifically the breastplate due to its xylophonic appearance. Synonymous with xylobone.
"I was trying to focus on the clothes during that fashion show, but I kept getting distracted by those xylophones."
"Whoa, girl, you losing weight? I see some xylophone!"
"Victoria
Beckham rocks her xylophone in those red
carpet pictures."