Block SE From Spidering A Portion Of Text?

Is there a tag I can use that will stop a search engine from spidering a piece of page eg,

<don't spider>text</don't spider>

Or something to that affect?

You see I have a shoutbox at the top of my forum but want to hide it from search engines as a lot of shouts are just crappy shit chat.

 

also interested. nudge nudge*

 

Your forums shoutbox won't index anyways, while it is in JS

 

First off, why do you want to do this?

 

Nice tip, I was unaware of that, is it really works

 

it's not JS