Gibbon rhymes with:
mcgibbon, fitzgibbon, gribben, gribbon, hibben, ibn, mcgibbon, mckibben, mckibbin, mckibbon, plybon, ribbon
Gibbon sounds like:
gabon, gaffin, gaffney, gaufman, gauvain, gauvin, gavan, gaven, gavin, geffen, gibboney, gibian, gibney, giboney, giffen, giffin, giovanni, giovannini, giovannoni, givan, given, givhan, givin', gobain, goben, gobin, goffin, goffman, goffney, govan, govoni, guffin