Falcoff rhymes with:
mehalkoff, mehalkoff, wolkoff, acoff, berkoff, gleichauf, hartkopf, isikoff, kosecoff, krauskopf, mehalkoff, minskoff, polakoff, weiskopf, wikoff, winecoff, wolkoff, wyckoff, wycoff, wykoff, yetnikoff
Falcoff sounds like:
failsafe, falsify, fellowship, flagship