* water in mouth
Expression used often by Everyone
This is what you say when you want to tell someone to keep a secret.
"Lo sapevi che Gianna ha tradito Mario? Mi raccomando, acqua in bocca."
"Did you know that Gianna cheated on Mario? I beg of you, water in mouth."
Added August 2020 by ottavio
12 out of 12 Italian speakers have heard this