Hello. I was wondering if anyone can remember the name of this movie. I saw it maybe 15 years ago, and would like to see it again if I only could remember its name 
The film is about a cop who infiltrates a gang of bikers by proving himself a worthy biker. In the beginning they show him feeding eggs-and-snickers shake to his big lizard. There's also a gang member in the jail with a spider tattoo in his ear. The cop had to bring the ear as a proof that he killed him.
The plot is fairly simple, but using the keywords didn't bring any results. Thanks for help.

The film is about a cop who infiltrates a gang of bikers by proving himself a worthy biker. In the beginning they show him feeding eggs-and-snickers shake to his big lizard. There's also a gang member in the jail with a spider tattoo in his ear. The cop had to bring the ear as a proof that he killed him.
The plot is fairly simple, but using the keywords didn't bring any results. Thanks for help.