Taqbīḥ al-mushabbah is the opposite of beautification. The speaker associates the subject with a model perceived as ugly, repellent, or contemptible, intensifying a negative judgment about a habit or condition.
The portrayal may focus on an unpleasant gesture, sound, or way of speaking.
Recognizing the rhetorical mechanism of disparagement is distinct from endorsing ridicule of people. The analytical question is how the comparison produces a negative impression.