My mama didn’t raise no dummy

(my) mama didn't raise no dummy

I am not stupid, foolish, or naïve. A: "And just make sure the safety latch is in place before you start the engine." B: "I know, I know. My mama didn't raise no dummy!" They thought they could pull a fast one on me, but mama didn't raise no dummy.
See also: dummy, mama, no, raise
Farlex Dictionary of Idioms.

My mama didn’t raise no dummy

sent. I’m not stupid. Sure I know the difference between good and bad. My mama didn’t raise no dummy.
See also: dummy, mama, no, raise
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • (my) mama didn't raise no dummy
  • dummt
  • dummy
  • (my) momma didn't raise no dummy
  • know which end is up
  • as we know it
  • before you know it
  • before you know where you are
  • I know
  • as you know