
...are Fort Knox, Fort Ticonderoga,
Fort Sumter...
The Big Bang Theory Season 8, Episode 20

What are we doing? This is a FORT.
Let's sit on the floor.
The Big Bang Theory Season 8, Episode 20

And that's why you're not
on a list for my tree FORT.
The Big Bang Theory Season 7, Episode 6

We built a FORT.
The Big Bang Theory Season 8, Episode 20

...we could build a FORT.
The Big Bang Theory Season 8, Episode 20