(law) Pertaining to a test of causation whereby an agent or action is considered to have caused an event (and therefore to be responsible and/or liable for said event) if, had said agent or action not existed, the event would not have taken place.

(simile) Very bright (clever, smart, or crafty) / (simile) Very cheery, energetic and upbeat.

An emergency button which, when pressed, alerts authorities of danger or triggers an alarm system.

plural of butterfly net

A small net with attached handle used to collect butterflies and other insect species.

A lamp that is a conspicuous feature of Tibetan Buddhist temples and monasteries throughout the Himalayas. The lamps traditionally burn clarified yak butter, but now often use vegetable oil.

(Canada, US, slang) Slapping the buttocks (an action associated with jest or as in a locker room).

Alternative spelling of headbutt.

Alternative spelling of headbutt.

(Canada) A tart filled with butter, sugar, eggs, and often raisins.