n.

a wooden or metal staff that fits under the armpit and reaches to the ground; used by disabled person while walking

anything that serves as an expedient

"he uses drugs as a psychological crutch"

Shearing and crutching from a back pack
Device for crutching external loads on aircraft
The Effect of Shearing and Crutching
[Wethers crutching evaluation and neonata lambs wheedling]
Machine for crutching sheep and other associated veterinary purposes
Evaluacion del crutching en borregas y del capoteo de corderos recien nacidos.
Dag scores and mean crutching and shearing period for mulesed and unmulesed weaners
Strategic use of crutching and dicyclanil to protect unmulesed sheep against breech strike
Australian Government website covering Basic management of pet sheep including crutching
Divergent selection for reproduction affects dag score, breech wrinkle score and crutching time in Merinos.