What does it mean on the ingredients of oscer mayer wieners=mechanically separated?

Answer 1

It means that the meat was mechanically removed from the bone by being forced through a sieve. It's a meat paste.

From the USDA

Mechanically Separated Meat (MSM)
Mechanically separated meat is a paste-like and batter-like meat product produced by forcing bones, with attached edible meat, under high pressure through a sieve or similar device to separate the bone from the edible meat tissue.

Answer 2

Although you don't probably want to know what the ingrediants consist of, mechanically separated means that the meat products used are ground and separated before they are mixed with the spices and placed into the casings that create the hot dog.

Answer 3

Uh, that a machine pulls them apart or that the filling, so to speak, is mixed seperatly.