The style used by Kamogawa when he fought Anderson (Hajime no Ippo) causing your fists to become like iron and leave an imprint on your opponents body when hitting them
Kamogawa: "ATTACK!!!"
Kamogawa: *nails andersons liver with a left bodyblow leaving an imprint*
Audience: "THATS THE IRON FIST STYLE!!!!!!!"
When a man puts on a aluminum cast condom and butt fucks his neighbor until the friction is too much and the heat melts the metal and casts the neighbors ass down to every detail imaginable
Average man: "hey bro you tryna RomanianIron Fist tonight?"
Average mans neighbor: "yea bro, im down whenever"