A Ripper is the slang term for a type of hot dog that is popular in New Jersey. The hot dog is deep fried in oil until the casing bursts, or "rips."
They are dead simple to make at home and cook very fast, although you wouldn't want to make them very often.
You will need skin on wieners in natural casings and some hot oil and a fryer or a pan with enough hot oil to cover the dogs.
When the oil if hot, carefully place the wieners in the oil. When they float to the top, and the skins are crispy, serve on a bun and put whatever condiments on them you wish.
The oil can spit when the casings burst, so use caution.