crosstalk

• cross-talk, cross talk

From cross- +‎ talk.

Usage in reference to the Chinese comedic performance is probably a loose calque of Chinese 相聲／相声 (xiàngsheng).

crosstalk (countable and uncountable, plural crosstalks)

1. (electronics) Undesirable signals from a neighbouring transmission circuit; undesired coupling between circuits.
2. (biology) The situation where one or more components of a signal transduction pathway affect another pathway.
3. Conversation that is incidental to the topic under discussion.

   I couldn't hear the opening address because of all the crosstalk around me.

4. A traditional Chinese comedic performance in the form of a dialogue.

   Synonym: xiangsheng

5. Communication between parties who have extremely different perspectives.
   • 2020, Merlin Sheldrake, Entangled Life, page 239:

     Sharing resources for mutual benefit: crosstalk between disciplines deepns the understanding of mycorrhizal symbioses.

crosstalk (third-person singular simple present crosstalks, present participle crosstalking, simple past and past participle crosstalked)

1. To hold an incidental conversation

• crosstalk on Wikipedia.Wikipedia

• rock salts