Up and down jokes

There's two types of emo people:

1. People that cut side to side.

2. And people that cut up and down.

The most efficient is up and down.

What bumps up and down at 100km an hour?

A baby tied to the back of a speeding truck.

What goes up and down but stays in the same place?

Stairs.

What bounces up and down at 100 miles per hour?

A baby tied to the back of a pick up truck.

What's simultaneously up and down?

A retard on a plane.