Meaning of you don't know where it's been | Babel Free
Definitions
An object encountered in an unfamiliar place (such as outdoors) could be dirty or contaminated by germs, and should therefore not be handled through bodily contact. Chiefly said to command children not to interact with foreign objects.
childish, colloquial
Examples
“Get that banana peel out of your mouth this instant! You don't know where it's been!”
CEFR level
C2
Mastery
This word is part of the CEFR C2 vocabulary — mastery level.
This word is part of the CEFR C2 vocabulary — mastery level.