1. a person who heckles or interrupts a speaker with critical or disruptive comments
Usage: common in political and public speaking contexts
2. a worker who hackles fibers such as flax or hemp to separate and straighten them
Usage: textile industry; archaic or specialized

Examples

• The hackler in the audience shouted objections during the candidate's speech.
• A persistent hackler disrupted the town hall meeting with repeated heckling.
• The hackler was removed by security after refusing to be quiet.
• In the textile mill, the hackler prepared the flax fibers for spinning.
• The hackler's job required skill and patience to properly comb the fibers.