over-punching
/ˈəʊvəˌpʌn(t)ʃɪŋ/Computing. Now disused
noun
The punching of a hole in the upper portion of a punched card; the use of overpunches. Also: the provision of two independent sets of hole positions at opposite ends of a single punched card.
Origin
1950s; earliest use found in Science. From overpunch + -ing.