Krupman rhymes with:
chapman, chipman, clapman, coopman, copeman, groopman, hapeman, hopman, kampman, kampmann, koopman, koopmann, lampman, lipman, lippman, lippmann, lopeman, midshipman, shipman, shoopman
Krupman sounds like:
karabin, karban, karpen, karvonen, kervin, kirven