The uncovering of the canine tooth is the result of a double movement. The angle or corner of the mouth is drawn a little backwards, and at the same time a muscle which runs parallel to and near the nose draws up the outer part of the upper lip, and exposes the canine on this side of the face. The contraction of this muscle makes a distinct furrow on the cheek, and produces strong wrinkles under the eye, especially at its inner corner. The action is the same as that of a snarling dog; and a dog when pretending to fight often draws up the lip on one side alone, namely that facing his antagonist.[3]
It is suggested that the sneer is a universal expression ofcontempt[4] and that Darwin was the first to observe this.[5]Cats may be observed to sneer, though this is probably related to theFlehmen response.[6]
The horror genre actorVincent Price delivered his characters' lines with a trademark sneer.[8][9]
Punk rock musicianBilly Idol is also known for a trademark sneer.
In theHarry Potter stories,Draco Malfoy andhis father are notorious for their sinister sneers, which represent these characters' sense of entitlement over and contempt for those judged lacking in monetary, power, or family status.[10][11]
^Carroll E. Izard; O. Maurice Haynes (March 1988), "On the form and universality of the contempt expression",Motivation and Emotion,12 (1):1–16,doi:10.1007/BF00992469,S2CID145534507
^Joan C. Borod; Cornelia Santschi Haywood; Elissa Koff (March 1997), "Neuropsychological aspects of facial asymmetry during emotional expression",Neuropsychology Review,7 (1):41–60,doi:10.1007/BF02876972,PMID9243530,S2CID23549147
^'My amiable lady!' he interrupted, with an almost diabolical sneer on his face. 'Where is she - my amiable lady?' (Chapter 2)|'Have you been listening at the door, Edgar?' asked the mistress, in a tone particularly calculated to provoke her husband, implying both carelessness and contempt of his irritation. Heathcliff, who had raised his eyes at the former speech, gave a sneering laugh at the latter (Chapter 11)|'Yes, she's dead!' I answered, checking my sobs and drying my cheeks. 'Gone to heaven, I hope; where we may, every one, join her, if we take due warning and leave our evil ways to follow good!''Did she take due warning, then?' asked Heathcliff, attempting a sneer. 'Did she die like a saint? (Chapter 16)|'Heathcliff did not glance my way, and I gazed up, and contemplated his features almost as confidently as if they had been turned to stone. His forehead, that I once thought so manly, and that I now think so diabolical, was shaded with a heavy cloud; his basilisk eyes were nearly quenched by sleeplessness, and weeping, perhaps, for the lashes were wet then: his lips devoid of their ferocious sneer, and sealed in an expression of unspeakable sadness. Had it been another, I would have covered my face in the presence of such grief. In his case, I was gratified; and, ignoble as it seems to insult a fallen enemy, I couldn't miss this chance of sticking in a dart: his weakness was the only time when I could taste the delight of paying wrong for wrong.' (Chapter 17)| I could doubt no more: he was dead and stark!I hasped the window; I combed his black long hair from his forehead; I tried to close his eyes: to extinguish, if possible, that frightful, life-like gaze of exultation before any one else beheld it. They would not shut: they seemed to sneer at my attempts; and his parted lips and sharp white teeth sneered too! (Chapter 34)
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