You don't want to float
weightless in an AIRPLANE.
The Big Bang Theory Season 12, Episode 15
...the one where the frog has its tongue
stuck to the underside of an AIRPLANE.
The Big Bang Theory Season 6, Episode 19
...get in the AIRPLANE,
know where you wanna go, and fly it."
The Big Bang Theory Season 8, Episode 3
...like blue ice
falling out of an AIRPLANE lavatory.
The Big Bang Theory Season 2, Episode 2
Why would I touch her?
She's covered with AIRPLANE germs.
The Big Bang Theory Season 4, Episode 6