keep something under your hat

Lexical unit types: idiom
Topics: secrets, communication
Source domains: container
Particles: -
Similes: -
Verbs: -
CEFR Levels: -
Synomyms: my lips are sealed
Antonyms: let the cat out of the bag, spill the beans
Definition:
Examples:
Motivation:

Slične leksičke jedinice: my lips are sealed, let the cat out of the bag, spill the beans, call back, not open your mouth