Most language in one way or another expresses an opinion as well as communicating fact. Propaganda--political or commercial--slants language in an attempt to deceive the audience into accepting a conclusion without question. ...
What is an example of slanted language?
Saying someone "didn't have the guts to fight back." is a negative explanation of an event. Saying some "took the high road instead of taking a swing." is a positive explanation of an event.
What are slanted words?
When something is angled in a slant or diagonal, it's slanted. Another meaning of the adjective is "biased," or "one-sided." Slanted news coverage, for example, only gives you one perspective on a controversial subject, rather than the whole picture.