Bones hardly can be described as a good movie, but it qualifies as gory, guilty-pleasure fun.

This loopy Halloween yarn revolves around the ghost of a ’70s-era street character named Jimmy Bones (Snoop Dogg), who made a fortune running a numbers operation but got himself killed when he refused to go into the crack business.

His spirit is resurrected when some eager young go-getters take over Bones’ derelict, haunted mansion with the intention of turning it into a dance club. Creepy things have been going on there for years, not the least of which are attacks by a flesh-eating dog. But what really gets the ghost up and moving is the severely misguided young DJ-wannabe who steals a diamond ring from Bones’ corpse.

Dogg (whose mama named him Calvin Broadus) is a hugely popular rap artist and TV personality, but he doesn’t exactly act in this role so much as pose. Who needs acting skills, though, when your big moments involve things like dragging a switchblade across a pool table to let out an oozing pool of blood?

There is lots and lots of unconvincing blood in Bones. Floors bleed, heating pipes bleed, a bed bleeds.

Along with all the blood, there are lots of ghostly shadows, writhing lost souls and torrents of maggots to keep visual interest, though they’re never for one minute truly frightening.

Pam Grier (who was awarded the High Falls Film Festival’s Susan B. Anthony “Failure Is Impossible” Award in absentia last weekend) makes a memorable appearance as a psychic and Bones’ long-ago lover. Among the young folks, Khalil Kain (Juice) looks most like an actor with a future.

The hallucinations, flashbacks and yucky ghostly stuff are directed with woozy panache by Ernest Dickerson, who proved in the several films he shot as a cinematographer for Spike Lee (most notably Malcolm X) that he knows something about vivid images.

The script, credited to Adam Simon and Tim Metcalfe, makes enough rough sense to get by, and saves itself from pomposity with dashes of ghoulish humor.