
You know, this situation with Koothrappali
brings to mind a story from my CHILDHOOD.
The Big Bang Theory Season 2, Episode 4

Oh, my G--
This is my entire CHILDHOOD.
The Big Bang Theory Season 12, Episode 17

admittedly the happiest
600 hours of my CHILDHOOD...
The Big Bang Theory Season 5, Episode 23

Oh, well, I had a wonderful CHILDHOOD.
The Big Bang Theory Season 2, Episode 15

Oh, they all went with Leonard
to confront his CHILDHOOD bully.
The Big Bang Theory Season 5, Episode 11