Raise one’s hackles

What is Raise one’s hackles?

Raise one’s hackles definition and meaning on Dictionary terms:
one of the long, slender feathers on the neck or saddle of certain birds, as the domestic rooster, much used in making artificial flies for anglers.
the neck plumage of a male bird, as the domestic rooster.
hackles, the erectile hair on the back of an animal’s neck: At the sound of footsteps, the dog raised her hackles.anger, especially when aroused in a challenging or challenged manner: with one’s hackles up.

Angling. the legs of an artificial fly made with feathers from the neck or saddle of a rooster or other such bird.hackle fly.

a comb for dressing flax or hemp.

verb (used with object), hack