verb
(transitive) To question harshly in an attempt to find or reveal weaknesses.
(transitive) To insult, tease, make fun of or badger, especially during a comedy performance.
(textiles) To prepare (flax) for spinning, using special combs called hackles.
noun
Alternative form of hackle (“tool for separating flax”).
The long shining feathers on a cock's neck.
A feather ornament in the full-dress bonnets of Highland regiments.
An rude interruption during a show, especially a comedy performance