not born yesterday

not born yesterday

Fig. experienced; knowledgeable in the ways of the world. I know what's going on. I wasn't born yesterday. Sally knows the score. She wasn't born yesterday.
See also: born, not, yesterday

not born yesterday

More experienced and less naive than one appears to be, as in Don't think you can fool me; I wasn't born yesterday. This term gained currency from the title of Garson Kanin's popular Broadway play, Born Yesterday, which was made into an even more popular film. In both, Judy Holliday played a stereotypical dumb blonde who shows more common sense than her sophisticated acquaintances. [Early 1800s]
See also: born, not, yesterday

not born yesterday

If you say that someone wasn't born yesterday you mean that they have enough experience to not be easily tricked. Listen, I wasn't born yesterday. This looks like a work of fiction to me. Note: This expression is often varied. For instance, you can say that someone must think you were born yesterday if they treat you as if you are stupid. They must think I was born yesterday if they think I'd fall for a trick like that.
See also: born, not, yesterday
References in periodicals archive ?
The halls are adorned with oil paintings, and the driveways are lined with "large majestic oak and maple trees [that] signal that Highridge was not born yesterday," Cookson writes.
It reminds people that we come from somewhere, that we were not born yesterday, and that we have a rich history of civilization and democracy that we can build upon, as we chart course for a new Syria," Moubayed said.
NNA - 7/12/2011 - MP Nabil De Freij said Wednesday that quarrels between government components were not born yesterday but they have been ongoing ever since the government was formed.
Indeed, it is no secret that the team which "stormed" the airport, based on the description of some media outlets, was not born yesterday.
Some of us were not born yesterday, and we have seen a full measure of cynical calculations from politicians of every stripe.
The judge told Hardman: "I like to think I am experienced and not born yesterday.
Opposition politicians, some of whom were not born yesterday, have already cottoned on to the weakness of New Labour's plot.