No harm no foul

[Jessica]

no problem, its cool.

Usually used in response to someones apology to indicate acceptance.

See [No worries].

[Jessica]

I think this phrase actually began in basketball. If there isnt any harm inflicted to stop a game, then there should be no foul called.

Its used commonly today to brush off insults or mistakes and the like.

[Becky]

If a phrase that originated on the basketball court. It is in reference to referees or players on the streetball court calling soft fouls.

In the eyes of some, soft fouls being called only slow the game and detract from the contest and beleive that unless the contact is significant there is no point in calling the foul. Hence, No harm, no foul.