the attribute of your ribcage protruding from your back and being extended to the point you can use them to stand rather than using your normal legs.
those who have ribcage spider legs may have also developed a blood hydraulic system and some makeshift joints within the ribcage spider legs allowing them to actually walk using their strange bone protrusions.
person 1: "Hey did you hear that jimmy developed ribcage spider legs?"
person 2: "Dude wtf! how did you get in my house?"
person 1: "jimmy gave me a ride." *points out broken window*
jimmy: *bone crunching noises as jimmy approaches the window* "my darkened soul hungers for your flesh."
The king of beating ribcages with items including but not limited to: metal pipes, yardsticks, a frozen bag of sardines, Remington 500 pistolwhip style, rebar, 35 year old loaf of bread, nutsock filled with pennies, astolfo figurine, rgb keyboard, a small dog, etc.
Nerd: "Please stop hitting my ribcage with a metal pipe"
Ribcagebeater420,King of ribcage beating: "The ribcage beater is not yet satisfied"
When you fail at something in life (eg. failing an exam or not getting a job), go home and spend an hour just standing in the shower, propping yourself up against the wall with your eyes on your feet.
Caleb knew the only thing to do after he didnt get prefect was take a failureshower.