Gossip sneezing 

It's a word that was originated in the Love Island game and it is used to refer to someone that sniffs out gossip from one or more people and then spreads it to alot of people, just like how someone might sneeze improperly and the snot would touch alot of people

E.g Chelsea is such a gossip sneezer

Dont tell Vidal your secrets he's a pro at gossip sneezing

Gossip sneezing by Princessjr August 24, 2019