Why would I touch her?
She's covered with AIRPLANE germs.
The Big Bang Theory Season 4, Episode 6
You don't want to float
weightless in an AIRPLANE.
The Big Bang Theory Season 12, Episode 15
"Like blue ice
falling out of an AIRPLANE lavatory," yep.
The Big Bang Theory Season 2, Episode 2
...like blue ice
falling out of an AIRPLANE lavatory.
The Big Bang Theory Season 2, Episode 2
Maybe an AIRPLANE headed
for a mountainside.
The Big Bang Theory Season 3, Episode 2