look up any word, like dirty sanchez:
 
1.
Fisted hard by an alien, that you almost die.
Erin: "I got Jupiter fisted last night, I almost died"

Mitch: "You have to be careful with the Jupiter fisting, I had a friend that died"
by pvilleslut November 12, 2013
 
2.
To get fisted by a woman who shops at Lane Bryant.
The fat girl walked out of Lane Bryant and Jupiter fisted me right in the ass with her massive paw.
by tholts November 12, 2013