Wiktionary
tardy slips
n. (tardy slip English)
Usage examples of "tardy slips".
I waited around the front office for a few minutes, watching the kids come in to whine about tardy slips and unexcused absences, then followed a no-nonsense rump into the shrine for a word with the principal.
She then swung into a morc familiar routine of club meetings, unsigned tardy slips, and illicit behavior in halls and rest between classes, all of which made her tidy little world go round.