The act in fighting of almost uppercutting somebody but changing it to a hook when you realise you're going to miss
Mark: Ryan totally upperhooked that guy!
Ryan: Oh yeah!
/ˈʌpəhʊk/
a punch to the body in boxing, MMA and various other combat sports that combines a hook with an uppercut, resulting in the punch being delivered with a diagonal motion and the arm bent.
"Ricky Hatton broke Castillo's ribs with that upperhook!"