Cybercash rhymes with:
overcash, overcash, ayyash, backlash, backslash, balderdash, barbash, eyelash, fiveash, jordache, mishmash, monash, moustache, mustache, overcash, postcrash, potash, slapdash, whiplash
Cybercash sounds like:
capers, caporaso, capri's, caprice, caprices, capricious, caspers, cavers, ceasefires, chauffeur's, chauffeurs, chavers, chesebrough, chivers, chopper's, choppers, ciborowski, cobras, coffers, cooper's, cooperage, coopers, copiers, copper's, coppers, coverage, coverages, covers, cuperose, cybersex, cyborg, cyphers, cypress, cypress's, cypris, cyprus