The story
The noun is derived from pin + cushion. The verb is derived from the noun.
Etymology from Wiktionary, CC BY-SA 4.0.
pincushion
pin·cush·ionToday it means: A device, originally like a small, stuffed cushion, designed to have sewing pins and needles stuck into it to store them safely; some modern pincushions hold the objects magnetically. Full definition →