Can I delete / change this?

[Spangle]

I've found that Yahoo/Bing is using this line of code to pull a description of my forum for microdata, obviously, I don't want a single forum description in the microdata, I want something more relevant.

Can I delete this, or at least change it for something more appropriate for Yahoo/bing to display?

<meta name="description" content="{vb:var page.metadescription}" /><vb:comment>We don't want any html in the description to break the metadescription</vb:comment>