1. an extended period of talking or discussion, especially a lengthy radio or television program featuring continuous talk
Usage: informal

Examples

• The radio station hosted a charity talkathon that lasted twelve hours.
• The late-night talkathon covered everything from politics to pop culture.
• After the meeting turned into a talkathon, we had to reschedule other appointments.
• The phone-in talkathon raised thousands of dollars for the local food bank.
• What started as a brief chat became a three-hour talkathon.
• The television talkathon featured celebrity guests discussing current events.