I wasn't born yesterday 

Something you say in order to tell someone that you are not stupid and are not easily deceived.

Mom: Timmy, what was that sound?
Timmy: Idk mom, it was probably Johnny masturbating again.
Mom: I wasn't born yesterday. Get your damn girlfriend out of your room.

I wasn't born yesterday by susanandvictor4eva April 24, 2015

I wasn't born yesterday 

A phrase meaning (often used sarcastically), i appreciate it, but please stop giving me advice, I know what I am doing.

Mother: Adrian go take a shower, then do your homework, not the other way a round.

Adrian: mom, I wasn't born yesterday, I will take a shower when I feel its appropriate, besides, i have this paper to finish writing for tomorrow.

I wasn't born yesterday by Uncle Dimma January 17, 2013

I wasn't born yesterday 

A phrase meaning , please stop giving me advice, I know what I am doing.

Mother. Adrian go take a shower, then do your homework, not the other way round.

Adrian. Mother., I wasn't born yesterday, I will take a shower when I feel its appropriate.

I wasn't born yesterday by Uncle Dimma January 10, 2013