From kill + -0r. <span class="searchmatch">kill0r</span> (third-person singular simple present kill0rs, present participle kill0ring, simple past and past participle kill0red) (leetspeak)...
kill0rs third-person singular simple present indicative of <span class="searchmatch">kill0r</span>...
chargings towards impossible forces. […] 14) Spike and Angel are trying to <span class="searchmatch">kill0r</span> the middle huge demons but are doing sweet FA damage. Cue some Fatherly...
hit-to-kill homekill if looks could kill I kill you later in for the kill <span class="searchmatch">kill0r</span> killability killable Killadelphia Killary kill bit killbit killboard killbot...