ghostbuster

A ghostbuster is someone who investigates or eliminates ghosts and other supernatural phenomena, typically as a professional service.

The term gained widespread currency from the 1984 comedy film *Ghostbusters*, which depicted a team of paranormal exterminators in New York City.

While actual ghost-hunting services exist, the word is often used humorously or in reference to the film franchise: Who you gonna call? Ghostbusters!