
You know, come on, it's your BIRTHDAY,
I can soldier through this.
The Big Bang Theory Season 10, Episode 11

Now, let's talk about your BIRTHDAY party.
The Big Bang Theory Season 8, Episode 6

Isn't Halley's BIRTHDAY
the same as Amy's?
The Big Bang Theory Season 11, Episode 11

We'll throw Leonard a kickass
surprise party for his BIRTHDAY.
The Big Bang Theory Season 1, Episode 16

and now it is time
to complete your BIRTHDAY celebration.
The Big Bang Theory Season 10, Episode 11