This is not a SFW instance. NSFW communities will be tagged, and efforts will be made to keep SFW communities clean, but proceed at your own comfort level.
Over 9000 is a popular catchphrase derived from the Japanese manga anime series Dragon Ball Z, typically used as an innumerable quantifier to describe a la
This is how many percent of this I understood: 0
This is how many percent I value and appreciate your contribution nonetheless: 100
The detective is hoping to find fingerprints of the perpetrator and told the other to look for prints. The other found Prince.
Detective corrects that they meant finger prints, which sounds like an instruction to “finger Prince”.
Edit: the dandy guy there is called Prince. Was famous sometime.