I’ve seen every Bugs Bunny.
Love Bugs Bunny.
I’m getting the picture. It’s an east coast urban thing from a long long time ago.
And there’s no one source for it per se.
Writing comedy skits 101
Elevators
A stock phrase associated with department store elevators, which in Real Life often emit a prerecording that lists the “departments” of the current floor. (In the days of live elevator operators, it was typically the operator’s job to do this.)
Typically the formula is two normal items and a plot relevant item, though this can be mixed up by having another mundane item after the plot-relevant item. The plot-relevant item is often jarringly discordant with the other mundane items.