Not sure what "CA" refers to here. The original line, spoken by Dio, uses "Stewardess" instead.

Heinrike said:
Not sure what "CA" refers to here. The original line, spoken by Dio, uses "Stewardess" instead.

"Cabin Attendant" is a wasei-eigo that means "Flight Attendant." The term "Stewardess" has been replaced by this word in Japan.

This parodies the scene in JoJo from http://www.mangarush.com/manga/jojo39s-bizarre-adventure/249/p-1 Volume 27

Heinrike said:
The original line, spoken by Dio, uses "Stewardess" instead.

When was this? I can't seem to remember this particular scene.

Edit: Rereading Stardust Crusaders, I found this page. That what you meant?