Bigtime rhymes with:
bernheim, coenzyme, draheim, duhaime, hillesheim, manheim, mannheim, nettesheim, preheim, sermersheim, wehrheim, wertheim
Bigtime sounds like:
bagdon, baisden, basden, basten, bastian, bastien, bastin, bastion, baston, bastone, beaston, becton, begotten, biosystem, bogdan, bogden, bogdon, bostian, boston, bostonian, boughten, boughton, boustany, buckstein, bustin, buxton