The Greaser Haunt was a 1950's-style ghost that came across a fast food restaurant called the Big Greaser.
The Greaser Haunt was attracted to the sound of the Big Greaser restaurant's music and emerged from a manhole entrance. Greaser hid in the drive through speaker and ambushed Peter Venkman when he made an order. After splashing an apple turnover in Peter's face, the ghost possessed the Big Greaser statue. He was wrangled out and captured by the Ghostbusters after causing a lot of havoc.