The Collaborative International Dictionary of English v.0.48:
Joggle \Jog"gle\, n. [Arch.] A notch or tooth in the joining surface of any piece of building material to prevent slipping; sometimes, but incorrectly, applied to a separate piece fitted into two adjacent stones, or the like. [1913 Webster] Joggle joint (Arch.), a joint in any kind of building material, where the joining surfaces are made with joggles. [1913 Webster]