Pepper Jack Penis 

A white (often pale) member, that is covered with multiple forms of sexually transmitted diseases, thus giving it the look of a block of pepper jack cheese. Especially common in uncircumcised members of the male population who are known to have higher rates of sexual diseases, and if unwashed can accumulate a cheesy residue.

"Have you seen Willy's junk? It's totally a pepper jack penis"

Pepper Jack Penis by Richard Queso November 29, 2012