T.Y.B. means: You should take care of your bones. (in Community Dictionary, added by Alisha Glass)
What else does T.Y.B. mean?
- Take your bitch! Name of the notorious and controversial gang that was formed by Nick, Cole West and Jason Hinton. Although it’s well-known in the McKinney area where it was founded, the group isn’t respected and often ridiculed. The gang is frequently seen as an unreliable group of bullies who are in fact a collection of tools and pussies. (in Community Dictionary, added by Tomalley)