Finishing someone off when you have gained the upper hand in a mutual struggle, preferably by killing them or delivering a final blow.
Finish him!... do it now while he's weak!!!
classic line from Mortal Kombat.
A line from Mortal Kombat when you want to rub in your victory and make your friend whine about losing. Usually followed by a fatality, babality, friendship, animality, or if you have the x-rated version, the bestiality.
(Lui Kang executes bicycle kick)
(Lui Kang has sex with farm animals)
Chilling command uttered by Sensei John Kreese in the film 'The Karate Kid' just before Daniel LaRusso crane kicks his boy right in the mug, thus winning the love of Elizabeth Shue.
John Kreese ignored Daniel setting up for the crane kick and commanded Johnny to finish him.
Annoying video game cliche, thanks to mortal combat, usually said when the opponent is already obviously dead/dying and the sick fuck with the controller wants to see an extra gruseome death in 8 bit graphics.
FINISH HIM!!! shut the fuck up!