I have heard smackdown used to describe a fight or physical contest -- like a wrestling competition.

我听说" smackdown（美国摔角联盟）" 曾常被用来描述一场打斗或者体育竞赛——就像摔跤比赛。

It kind of makes a sound, like (that.) But as a slang expression, a smackdown means a sharply critical comment.

打出声音那种，像那样。但是作为一个俚语，" smackdown" 意思是尖锐的批评言论。

Looks like Neal's poker smackdown paid off.

看来尼尔的牌局冲击波奏效了。

It's too late for a purse smackdown.

都这会儿了 还来什么包包大PK啊。

Three different smackdowns, all that somehow smack down not in the way that you would expect.

JAD：三种不同的打击，所有这些都以某种方式打击而不是你所期望的方式。