There’s a species of fish called “Slippery Dick”.
The slippery dick (Halichoeres bivittatus) is a species of wrasse native to shallow, tropical waters of the western Atlantic Ocean.
How did the Slippery Dick fish get its name? The interesting name of the fish comes from its ability to slip from fishing nets because of its slender body and slippery skin. In Spanish, this tropical fish is also known as Doncella rayada.
Source, Image credit: Brian Gratwicke/Wikimedia Commons