This kid’s birthday bash looked more like a bachelor party.

Grainy YouTube video shows a stripper shaking her booty for a boy celebrating his eighth birthday.

One youngster is seen smacking the dancer’s backside, and another makes it rain dollar bills, during the age-inappropriate bash in Tampa, Fla.

Tampa cops received calls about the video last week, but cops didn’t act because nothing in the footage conclusively shows when and where the X-rated party happened, a department spokeswoman told The Post.

Reps for the nearby Hillsborough County Sheriff’s Department said they were not aware of the footage.

Critics blasted the twerk-fest as child abuse, the Daily Star reported.

“The mother should be put in jail and the stripper should be fined,” one disgusted video viewer said. “Disgusting.”