One fist distance; the distance used in martial arts between the arm and body in many strikes and blocks.
his elbow should be one fistance from the body to execute properly
by Sensei MJ May 14, 2011
Unit of measure for girth acceptance of the vagina in decimal fists.
"I nailed this chick last night but the fistance was 1.4; it was like parking a bicycle in an airplane hangar."
by CorollaCrew May 27, 2012