Slug (mass)
The slug is a unit of mass associated with Imperial units. It is a mass that accelerates by 1 ft/s2 when a force of one pound-force (lbF) is exerted on it.

One slug has a mass of 32.17405 lbm or 14.593903 kg based on standard gravity, the international foot, and the avoirdupois pound. At the surface of the Earth, an object with a mass of 1 slug exerts a force of about 32.17 lbF or 143 N.
Read more about Slug (mass): History, Similar Units
Famous quotes containing the word slug:
“Adrift dissolving, bound for death;
Though lumpish thou, a lumbering one
A lumbering lubbard loitering slow,
Impingers rue thee and go down,
Sounding thy precipice below,
Nor stir the slimy slug that sprawls
Along thy dead indifference of walls.”
—Herman Melville (18191891)