Flatbush rhymes with:
ambush, federbush, firebush, forbush, furbush, quackenbush, ritterbusch, rosebush, schimmelbusch, shadbush, wedbush, winbush
Flatbush sounds like:
feldpausch, flatfish, flatfishes
ambush, federbush, firebush, forbush, furbush, quackenbush, ritterbusch, rosebush, schimmelbusch, shadbush, wedbush, winbush
feldpausch, flatfish, flatfishes