A poison or potion that changes the body but not the mind. / Anything magically (and fatally) captivating, such as a potion or applause.

Any of three ivy-like species of Toxicodendron, known for their ability to cause an itching rash and blistering for most people, through urushiol, an oil that is a skin irritant.

Unethical actions in the service of good intentions will have immoral or unethical consequences.

plural of fruit of the poisonous tree

(US, law, idiomatic) Evidence that has been obtained as the result of an illegal act on the part of law enforcement personnel (such as a warrantless search, or continued questioning of a witness who has invoked the right of counsel), and which is therefore excluded from being admitted as evidence in a trial.

(informal) Used to ask someone what alcoholic beverage they would like to drink.

plural of poison dart frog

(idiomatic) A missive which is malicious, insulting, and/or defamatory toward a person, organization, or point of view, especially one which is unsigned.

plural of poison-pen letter

(film, theater) An unappealing play or film that sells very few tickets.