Thread:Grimmaniac/@comment-25819845-20160110185720/@comment-25862208-20160129190306

It's a play on words based on the song, "Bad to the Bone," which is kinda like saying someone is a badass basically lol. Good to the bone, given some context for Grimm, probably means somebody's gonna get eaten. I don' t know though, it's tough to say until the episode airs. I would say for now though that it kinda means "delicious" with a bit of a darker or more evil meaning behind it.