Mcgibbon rhymes with:
gibbon, fitzgibbon, gibbon, gribben, gribbon, hibben, ibn, mckibben, mckibbin, mckibbon, plybon, ribbon
Mcgibbon sounds like:
maccabean, mangiapane, mcbain, mcbane, mcbean, mccubbin, mcfann, mcfun, mcgavin, mcgivney, mcguffin, mckibben, mckibbin, mckibbon, megaphone, misshapen, mississippian