1MbmMGrtkahbjYNfLmsbKuGFByuKvAyxnC == gun thyme nose cubic almost relish fed
This has 90.47 bits of entropy, which is more than strong enough to protect against passphrase bruteforcing, if you do the math. It may look like a bold statement to the untrained eye, but I, for one, feel be perfectly safe and happy to store up to 5000 BTC with such a passphrase.
What about adding a non-dictionary word like your your screen name in some forum, your email address, nospaced phrases like "tooyoungtodie", you can even remember them more easily than "thyme" and "relish"