That nut job was telling everybody
on the PLANE he's an astronaut.
The Big Bang Theory Season 6, Episode 4
You owe me $3,000 for those
PLANE tickets to India!
The Big Bang Theory Season 12, Episode 15
and the shoes,
the PLANE tickets.
The Big Bang Theory Season 12, Episode 23
...by an inclined PLANE
wrapped helically around an axis?
The Big Bang Theory Season 4, Episode 5
Well, our PLANE leaves at 9 a.m.
Do you think you'll feel better by then?
The Big Bang Theory Season 3, Episode 15