(colloquial) An extremely funny joke. / (colloquial) A large meal that causes gastronomic pain.

(Britain) A somewhat comical sport in which two fat men try to push each other off a mat using their bellies.

(idiomatic) An instantaneous reaction made without thought.

(idiomatic) An instinct or intuition; an immediate or basic feeling or reaction without a logical rationale.

sickening / difficult to tolerate

(anatomy) The caecum of the intestines.

Describing a play in American football in which the player runs the ball through the middle of the field through defenders.

A major restoration project on an old house or other building, ripping out plaster walls back to the studs and rafters and replacing them along with some or all of the trim, windows and doors, plumbing and electrical systems, exterior siding, roof, etc.

(idiomatic) The emotional dimension of decision-making. A person's subjective (often almost visceral) feelings about what is right or wrong, good or bad.

(informal) A beer belly.