一笔勾销

一笔勾销:

Literally means:

write off at one stroke scratch off the account

Actually means:

It originally means writing off all the old accounts, meaning total cancellation of others' financial obligations.

It figuratively means forgiving or canceling all the debts, disputes, old scores, love or friendships in the past and not calculating or mentioning them again.

原指用笔勾去已经了结的账目，表示注销。

比喻把过去的债务、纠纷、恩怨、情谊，等等，完全取消，不再清算、计较或提起。