A very bright red uncircumcised penis. Mainly people with the name Matt have this, but applies to all boys.
Pepper Dick can also be used as an insult meaning that person is a dumbass, slap dick, useless to life, and/or a complete waste of space.
Hey yo Casey your such a pepper dick, I cant believe you did that to Luis!
Matt, did your parents ever tell you that you had a Pepper Dick?
