no ifs or buts

UK (US no ifs, ands, or buts)

something that you say to a child to stop them arguing with you when you want them to do something

(对儿童用语)少跟我胡搅蛮缠，别找借口

I want no ifs or buts - just get on and tidy your room now. 少给我胡搅蛮缠——现在就赶快打扫你的房间。

I don't care how, but you make sure you're at your son's party tomorrow—no ifs or buts about it!

我不管你怎么做，但你明天一定要去参加你儿子的派对，别说那些没用的!