The one who performs circumcisions on babys when they are born.
Wife: I'm glad our son is getting circumcised.
Husband: I just hope that the dick ripper goes easy on that little guy, he is tender!
In Aqua Teen Hunger Force, Mr. Wongburger's minions that do the dick ripping dirty work for the construction of his dickship. Also used to describe somebody in an extremely negative manner.
"The dickrippers are looking for Carl."
"You god damned dirty dickripper! You spilt bong water all over my new carpet!"