A nickname given to a person who is to much of a wanker for one dick. Multiple dickhead. Often fucks everything he touches and is basically an all round cock.
Mate: " That guys a total wanker"
Mate 2" We just call him six dicks"
A six pack and a large penis. From combining six pack and big dick
Amy: so how was Brad?
Jane: OMG he has a six dick.