If we see a big mouth, then it shows that we talk too much. A deformation in the mouth warns us of a possible disease. Swollen face refers to a selfishness. Face with a head turned upside down indicates preconceived ideas, prejudices.
Dream dictionary: swollen face in dream dream meanings
…and pointed excitedly at my coat. Following his glance, the blood in my veins froze. My coat, which was buttoned, had swollen to an enormous size, and right across the back of it, was a huge, flabby-lipped mouth that was gulping down some nasty -looking, sticky mess as fast as it could. With an ejaculation of disgust I loosened my hold of it, and the next moment, caught up by a strong current of air, it was wafted away from me and borne at a great rate across the desert. Hanging on to it behind, I noticed (with the greatest sensation of relief) my tail! I now left the boy, and aiming for a clump of trees I saw in the distance, was rapidly advancing towards it, when a very tall and thin man, with a fiat rectangular face no thicker than a plank, rose out of a pit a…