Mullarkey rhymes with:
malarkey, malarkey, larkey, malarkey, archey, darcie, darkie, demarchi, harkey, lamarche, larkey, malarkey, marchi, marcie, markie, marky, sharkey, sparky, trimarchi
Mullarkey sounds like:
mahler's, mailer's, mailers, malarkey, melrose, miller's, millerick, millers, moliere's, muller's