n. & v. t. Same as Hackle. [ 1913 Webster ]
v. t. 1. To interrogate, or ply with questions, esp. with severity or antagonism, as a candidate for the ministry.
Robert bore heckling, however, with great patience and adroitness. Mrs. Humphry Ward. [ Webster 1913 Suppl. ]
2. To shout questions or jibes at (a public speaker), so as to disconcert him or render his talk ineffective. [ PJC ]