Can a sentence have the word rowdy in it?

Yes, a sentence can have the word "rowdy" in it. Here are a few examples:

* The rowdy crowd cheered for their favorite team.

* The bar was filled with rowdy patrons.

* The party got a little rowdy after midnight.

"Rowdy" is a common adjective that describes something or someone that is noisy, unruly, and boisterous.