dander

n. temper; anger; vexation; dandruff, flaky scales of skin or feathers that can cause allergic reactions (Irish usage)

Not to be confused with Gander. Dander is material shed from the body of various animals, similar to dandruff. It may contain scales of dried skin and hair, or feathers. It is a frequent cause of allergy in humans.
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Dander /dan·der/ small scales from the hair or feathers of animals, which may be a cause of allergy in sensitive persons. dan·der n. [more]Dander - Community and Resources

Noun
1. small scales from animal skins or hair or bird feathers that can cause allergic reactions in some people
(hypernym) scale, scurf, exfoliation
2. a feeling of anger and animosity; "having one's hackles or dander up"
(synonym) hackles
(hypernym) anger, choler, ire

(v. i.)
To wander about; to saunter; to talk incoherently.
  

(n.)
Dandruff or scurf on the head.
  

(n.)
Anger or vexation; rage.