Farmers Slang & Its Analogues. 18901909, rev. 2022.
Arm-prop
subs. phr. (old).A crutch; a WOODEN-LEG (q.v.).
1
1821. W. T. MONCRIEFF, Tom and Jerry, ii. 6. If any lady or gemman is inclined for a dance, Ill nash my ARM-PROPS in a minute. (Throws down his crutches.)