Proform 2500 Treadmill

treadmill
a job involving drudgery and confinement
An exercise machine, typically with a continuous belt, that allows one to walk or run in place
an exercise device consisting of an endless belt on which a person can walk or jog without changing place
A device formerly used for driving machinery, consisting of a large wheel with steps fitted into its inner surface. It was turned by the weight of people or animals treading the steps
A job or situation that is tiring, boring, or unpleasant and from which it is hard to escape
a mill that is powered by men or animals walking on a circular belt or climbing steps

proform
A proform is an expression (typically a word) which has no specific content of its own, but which derives its content from its antecedent.
a form representing another constituent. Pronouns are common proforms, e.g. My little sister saw herself in the mirror.
A pro-form is a type of function word or expression that stands in for (expresses the same content as) another word, phrase, clause or sentence where the meaning is recoverable from the context.

2500
The 25th century of the anno Domini (common) era will span the years 2401–2500 of the Gregorian calendar.
Usually refers to a basic single line phone.