TV series example of the word

The Big Bang Theory Season 11, Episode 14
Look how big he got.
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- The barbeque burger's like the Big Boy."
The Big Bang Theory Season 1, Episode 5
- They only have one burger, the Big Boy. - The barbeque burger's like the Big Boy.

The Big Bang Theory Season 7, Episode 13
That-That's a big step.
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that proved the big bang,"
The Big Bang Theory Season 12, Episode 13
The scientists that proved the big bang,

The Big Bang Theory Season 7, Episode 19
with one of them, seeing other people isn't a big deal.