Doppelfaust

German for "double fist". Colloquially used to describe the act of insterting two fists into the same orifice such as the vagina or anus.
The term retains it's German origins as it implies a far more brutal treatment to the more conventional practices of fisting.

Similarly it is used within the Metal culture to indicate aviolent arousal to someone/thing or to express a distaste for someone/something, depending on context. (See example two).

1. Hrafvnir doppelfausted Mary whilst she was chained to the bathroom floor. The screams were amazing, i think she's starting to like it these days.

2. "I'd doppelfaust that girl over there!" or alternatively: "look at that hige brutess over yonder, she needs a good doppefausting in her mouth!"

Doppelfaust by Bojan December 2, 2007

doppelmaster 

A hot man with a harem of hot doppelganger girls who obey him thoroughly because of his looks, charm and unending appeal.

My pretty babes I am your doppelmaster so please obey and stay with me awhile.

doppelmaster by joysdaddy1 February 13, 2017

DoppelGanster 

DoppelGangster: A combination of the words "doppelganger," meaning "ghostly evil mirror image"
and "gangster," meaning proffessional criminal member of a family or group.
Combined the words mean "Criminally Evil Mirror Image."

Used in sentance: "I might have to do work tonight, I'm going to bring my DoppelGanster."
Or: "If you contiue to mistake kindness for weekness you will meet the DoppelGangster."

This can also refer to a friend that has a more street-oriented style than you:
"My Friend JC may resemble me, but he it's more like having my DoppelGangster around."

DoppelGanster by Tha MIssing Link December 1, 2009