| any of various devices consisting basically of a rod that can be inserted into an object and then manipulated so that the inserted part spreads, becomes offset, or turns at a right angle to the exterior part, allowing it to be used as a support, handle, linkage, lever, etc. |
| toggle joint n. A joint made of two arms attached by a pivot shaped like an elbow, allowing force to be exerted at the ends of the arms as the joint is expanded. |