An “eyewinker” placed in the palm of the hand will cause the ferule to break when the teacher strikes the palm with it.
Portsmouth, N. H.

An “eyewinker” placed in the palm of the hand will cause the ferule to break when the teacher strikes the palm with it.
Source: Current Superstitions (1896), entry 89.
Fanny D. Bergen, editor.
Modern normalized navigation; the historical attribution above remains unchanged.