A potentially fatal medical condition, also called water intoxication, caused by extremely rapid intake of water. / Contaminating a water source with a toxin.

A woody vine plant in the family Anacardiaceae (Toxicodendron radicans or Rhus toxicodendron), well-known for its ability to produce urushiol, a skin irritant that causes an itching rash for most people.

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.

(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.