It was nothing more than a boneheaded mistake.

而不过是个愚蠢的错误。

Pull a boneheaded escape with four months to go?

怎么会蠢到在还剩四个月刑期时逃跑？

Of all the stupid, boneheaded decisions.

居然干出如此愚蠢荒唐的举动。

I should imagine he'd give you a lot of very noisy, boneheaded sons.

我想像得到他会给你很多吵吵闹闹傻里傻气的儿子。