Mark mile

A mark mile is a unit of measurement where one standard mile is equivalent to five mark miles. In other words, 1 mile = 5 mark miles. This unit can be used for any calculation involving distance, where distances are converted by multiplying the number of miles by five to get the equivalent number of mark miles. This derives from mark the half man who is short, walking is strenuous on him.

I had to walk 1 mile to the store, which was 5 mark miles.