escalator, n.Definitions

The Escalator is 50% of the time, a de-escalator.

The Escalator can never break; at worst it only becomes stairs.

An Escalator only escalates half the time.

The Escalator is the most efficient place to tie your shoes.

An Escalator is incapable of breaking — it can only become stairs

The Escalator is a device which, if tripped on, can send you falling down the stairs for an hour and a half.