A genre of humor that mocks others by exaggerating features, many times each feature corresponds to a certain quality (the head might be the brain for example).
In this caricature, Mitt Romney sports several mouths.
This picture mocks Mitt Romney's nature of taking many wavering stances on several issues. The picture of Mitt Romney with several mouths exemplifies that idea.
In this caricature President Obama sports two massively over-sized ears. The drawing shows something going in one year and coming out the other. This caricature demonstrates that the President possesses bad listening skills. Because of the exaggerated characteristics this depicts a caricature.