A combanation of "hack" and "tackle" which defines an over zealous challenge in football/soccer.
"Oh Dear, that chap seems to have been badly hackled there, look here Ref send that unsporting ruffian off."
The feathers in the neck of a dominating cock or a so called rooster.
Woah that rooster must have fucking large and long hackles in its neck:O
The,hairs, spines or feathers of an animal, which are raised when the creature in question is distressed.
"Suddenly there was a crash downstairs,I thought it was a freaking burglar!it turned out it was the darn cat,I had my hackles up over nothing!"
The hair on the back of your neck.
"Don't get your hackles up."
i.e. "Don't get your panties in a bunch"
To be really irritated. Also the name of a funny webcomic
Hackle: When someone both cackles (laughs) and hacks(coughs) at the same time.
I think that dude is going to die. Do you hear his hackle? I think he's going to hackle up a lung.