Wordnet 3.0
NOUN (1)
1. 
 a feeling of anger and animosity; 
- Example: "having one's hackles or dander up"[syn: dander, hackles]
WordNet (r) 3.0 (2006):
hackles
    n 1: a feeling of anger and animosity; "having one's hackles or
         dander up" [syn: dander, hackles]