dander

Dandruff—scaly white dead skin flakes from the human scalp.

Hair follicles and dead skin shed from mammals.

Allergen particles that accumulate on and may be shed from the skin and fur of domestic animals, especially from household pets such as cats and dogs.

A cinder; (in the plural) the refuse of a furnace

Passion, temper, anger. Usually preceded by "have" or "get" and followed by "up".

“He'll get his dander up if his team is criticized.”

To wander about.

To maunder, to talk incoherently.