Locking up - both the gri-gri and cinch did just fine.    From Wordnik.com. Reference

Same as above, though for slingshot toproping with the gri-gri, the palm-down is fine, too.    From Wordnik.com. Reference

She called him gri-gri from the first, but they knew only long afterward that "gri-gri" meant "gray-gray," to signify that she called him after his grizzled hairs.    From Wordnik.com.  [Northern Lights] Reference

Nor do they employ skilled physicians to any considerable extent, especially in the early stages of their illness, for, inheriting from their African ancestry a belief in the potency of gri-gri charms.    From Wordnik.com.  [The American Negro: What He Was, What He Is, and What He May Become: A Critical and Practical Discussion] Reference