Sauce the sardines

1. To share gossip.

Synonyms: spread rumors, spread gossip, circulate rumors, spill tea, spread stories, tittle-tattle, tattle, talk, whisper, tête à tête, tell tales, stories, muckrake, tidbit

Past tense: Sauced the sardines

"I watched Marsha and Abby in the corner sauce the sardines in private."

“You told me you had sardines to sauce, what is it?”