The shelf- or bracket-shaped fruiting body of a bracket fungus (also called a shelf fungus), i.e. a mushroom growing off a tree trunk.

(slang) A nose, especially a large one.

Alternative spelling of conch

(slang) To hit, especially on the head.

(colloquial, often with out) To fail or show signs of failing, cease operating, break down.

(colloquial, often with out) To become unconscious.