skip it; drop it; never mind
Used to dismiss a topic, suggestion, or action, often with a tone of resignation or impatience. Can be said to oneself or to others.
Forget it, let's just drop it.
That's enough explanation; never mind.
I've had enough; that's enough
Expresses that one has reached a limit, often when refusing an offer or indicating satiation. Can sound blunt or irritated depending on tone.
I've had enough; I'm full.
もういいから、やめてくれ。
That's enough, stop it.