TV series example of the word

The Big Bang Theory Season 7, Episode 6
♪ Making it much harder to crack ♪

The Big Bang Theory Season 4, Episode 5
...and that didn't even crack my top 10.

Westworld Season 2, Episode 4
Another year or two, they might crack it...

The Big Bang Theory Season 8, Episode 6
I feel like I can't breathe, and I am tempted to crack you open...

The Big Bang Theory Season 5, Episode 21
Hey, I gave you first crack at it.