Sharpnack rhymes with:
banach, bembenek, benak, benecke, beneke, brannock, brignac, canonic, canuck, charnock, chinnock, dornak, enoch, eunuch, fanuc, gananoque, garnock, gignac, hanak, hannoch, harnack, hornack, hornak, hrivnak, isogenic, janak, jannock, kanak, kinnock, kraynak, laminack, lexiphonic, manak, manternach, pennock, pinnock, rappahannock, rasnake, rusnak, rusnock, stronach, thornock, zanuck, zelenak
Sharpnack sounds like:
sarbanes, scorpions, scraping, scrapings, scrapping, scrivens, scrubbing, serbian's, serbians, serving, servings, sharpening, sharpens, sharpness, surfing, surveying, surviving