Alternative form of button one's lip

(idiomatic) To remain silent, especially in order to keep a secret or to avoid saying something inappropriate.

plural of butter-and-egg man

A long patch of butter on a floor that will cause anybody walking on it to slip, traditionally used in slapstick or as a practical joke.

Not at all; quite the contrary (of).

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.