Definition: Gillied is a term used in the context of medicine and psychology to describe a state where someone or something appears to be experiencing a certain condition or symptom, even though it has not actually occurred. It can also refer to an action or behavior that leads to a negative outcome due to some underlying cause. For example, if someone is feeling gillied by a drug they are taking, but the drug does not appear to have any effect on them, this could be considered a form of deception