not be born yesterday Meaning in the Cambridge English Dictionary Cambridge dictionaries logo

Meaning of “not be born yesterday” in the English Dictionary

"not be born yesterday" in British English

See all translations

not be born yesterday

to not be ​stupid or ​easy to ​deceive: You don't ​fool me - I wasn't born ​yesterday.
(Definition of not be born yesterday from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)
Translations of “not be born yesterday”
in Chinese (Simplified) 不傻, 不易上当…
in Chinese (Traditional) 不傻, 不易上當…
Add Cambridge dictionaries to your browser to your website
Word of the Day

fire-eater

a performer who entertains people by seeming to swallow flames

Word of the Day

PLEASE DON’T SHOUT!
PLEASE DON’T SHOUT!
by Colin McIntosh,
February 09, 2016
New words are entering the language all the time. A few of these are completely new and original coinages, but the vast majority are based on the existing stock of words in some way, for example by using affixes (prefixes and suffixes). These can have the effect of changing the meaning of the

Read More 

farecasting noun
farecasting noun
February 08, 2016
predicting the optimum date to buy a plane ticket, especially on a website or using an app A handful of new and updated websites and apps are trying to perfect the art of what’s known as farecasting – predicting the best date to buy a ticket.

Read More