What is Dark Shark?
1.
Human defecation in a swimming pool.
Send that newbie life-guard out to clean up the dark shark in the kiddie-pool.
See
2.
A girl who is of a race other than black/african that specifically seeks out black/african males for dating and sexual interests. Her dress, mannerism, and speech may reflect that of popular black/african culture. Kind of like a female version of a "whigger".
You dont have a chance with Gina if you arent black, shes a dark shark