A preparation of unsalted butter in which the butterfat and milk solids are allowed to separate and brown over a heat, used in French pastry or as a sauce.

brown butter

(colloquial) A situation when one's cellphone makes a call from one's back pocket where its buttons are being inadvertently pressed

(colloquial) To accidentally make a call this way.

(electronics) A button that resets something.

A kitchen tool designed to produce decorative butter shapes for use in food decoration.

(Canada, US, slang, vulgar) The act of forcing anal sex upon another person, without their consent and/or against their will.

(Canada, US, slang, vulgar) To force anal sex upon another person, without their consent and/or against their will.

In a slow, yet careful manner.

plural of butterfly knife