A large sandwich is on the subway tracks. Two people look on while standing on a subway platform.
Subsandwhiches are usually a foot long but here it is being compared to a large subway train.
Why is the sandwich so large?
He really did appoint Chris Christie as Secretary of Transportation.
scene: a subway description: A large sandwich is on the subway tracks. Two people look on while standing on a subway platform. uncanny: Subsandwhiches are usually a foot long but here it is being compared to a large subway train. entities: Submarine_sandwich, Customer. caption: He really did appoint Chris Christie as Secretary of Transportation.
A joke poking fun at Chris Christie's weight and also the double meaning of "subway" (as transport, and as a type of sandwich) --- because Christie is an overweight politician, the joke is that if Christie were the secretary of transportation, he would replace the subway in new york with a literal subway sandwich.