The Mastadon 

a sexual move that is often considered the most awesomely brutal way to pleasure your woman. First, you have her turn around and bend over as you back away a good 20-30 fists. Then, you make a tight fist with your thumb on the inside (you'll find out why shortly). Then, you ram at her full speed, shoving your fist straight up her vagina, while crying out "MASTADON!!".

I just gave that chick the mastadon from 40 fists away!

The Mastadon by Jimmy Jonga November 11, 2008

Mastadon 

ex signature of MARAUDA (Hamish Prasad, Sidney) a bass music and tearout dubstep producer. Previously named Mastadon due to his admiration for elephants, had to change his brand name to Marauda because the heavy metal band Mastodon sued him.

Marauda: Hello River plate! I just woke up and hit a blunt so i can't really talk so much, so brace yourselves and prepare for six hours non stop of (reverb distort voice) MASTADON (earbleeding shrill bass)

Mastadon by Ape Warrior September 20, 2023