The action of folding ones hands together and then fisting a vagina or anus at a high rate of speed. Typically crisco is applied to the forearms and fists. If you are ajilted lover perhaps you will give your partner an ungreased super double fister.
Dude, the other night Stevie D and his new girlfriend gave each other super double fisters - I heard the girlfriend gave stevie an ungreased super double fister. Man, his anus must lbe the size of a peanut butter jar.