【俚语】

Butt in 打断谈话，插嘴

【例句】

I don’t like him. He kept on butting in with silly questions.
我不喜欢他。他不断插嘴，问一些傻傻的问题。

Butt out 走开！

【例句】

This is none of your business, so butt out.
这不关你事，所以不要再插手。

Cigarette butt 烟屁股，烟头

【例句】

Cigarette butts were all over my house after the party.
聚会后整个屋子到处都是烟头。

A kick in the butt 教训

【例句】

That speeding ticket was a kick in the butt for Dan. He really needs to get his driving under control.
那张超速罚单算是对Dan的一个教训吧。他确实需要控制下自己的驾驶习惯。

Be the butt of sb's jokes
受到某人的嘲笑

【例句】

No one likes being the butt of a joke, but the best thing to do is just laugh with them.
没有人喜欢成为别人的笑柄，最好的办法就是一笑而过。