Loaded language is a semi slang expression for forms of expression which give weight to particular terms and concepts in the text. These forms of language are used to promote views, and to influence the reader or listener's perception of issues and situations. The expression itself is a negative reference. It means that the 'loaded' component is misleading, or avoiding dispassionate discussion. It denigrates the value of the loaded language as substantive information.

Loading is in bold:

The sinister fisherman's suspicious smile frightened the innocent children. These uncommunicative strangers seemed unwilling to speak to us, hiding behind the language barrier.