Something which sickens, causes distress, or appalls by reason of being disgusting, gory, or repulsive.
To sicken or distress (someone) by being disgusting, gory, or lewd.
Any bad, miserable, difficult or terrifying situation or experience that arouses anxiety, terror, agony or great displeasure.
A very bad or frightening dream.
A feeling of extreme anxiety or suffocation experienced during sleep; Sleep paralysis.
To have a nightmare.