a lethal technique / a fighter's finishing move, ultimate technique, or coup de grâce, often in contexts such as pro wrestling or video games

lethality, deadliness

other person / partner / opponent

an instant / moment

fell; throw down; knock down; cause something upright to become horizontal / kill / defeat / overthrow / avoid paying (a debt)

to a great extent

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

(video games) OHKO, a one-hit knockout; defeating an opponent with a single attack