Killpack rhymes with:
aipac, backpack, compaq, deepak, dynapac, eastpac, gopac, innopac, midpac, peapack, rempac, schupak, transpac, waguespack, wespac, westpac
Killpack sounds like:
kalbach, kelbaugh, kelps, kielbasa, kilby's, killifish, klepac, kleubeck, kohlbeck, kolbeck