over and over; countless times; a hundred times
Dated expression for doing something repeatedly or many times. Often used in set phrases like 百遍も言った (I've told you a hundred times). The literal meaning 'a hundred times' is also used.
I was made to hear the same story over and over.
If you practice a hundred times, you'll get better.
Compound of 百 (hundred) and 遍 (counter for times/occurrences). The reading ひゃっぺん is a regular contraction of ひゃくへん.