least said soonest mended

Meaning

1. a bad situation will pass or be forgotten most quickly if nothing more is said about it

From the same entry

• before you can say Jack Robinson
• go without saying
• have something, nothing, to say for yourself
• having said that
• I'll say
• I must say
• I say
• it says a lot, very little, for
• I wouldn't say no
• the less said the better
• never say die
• not say boo to a goose