"hackles" in the noun sense
1. hackle
long slender feather on the necks of e.g. turkeys and pheasants
"having one's hackles or dander up"
"hackles" in the verb sense
1. heckle, hackle, hatchel
comb with a heckle
"heckle hemp or flax"
Source: WordNet® (An amazing lexical database of English)
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