Bumpass rhymes with:
boardingpass, bypass, overpass, trespass, underpass, worldpass, airgas, amerigas, bluegrass, boardingpass, bypass, eelgrass, energas, eyeglass, fiberglas, fiberglass, hourglass, jackass, landmass, outclass, overpass, piepgras, plexiglas, plexiglass, sassafras, serfass, shortgrass, snodgrass, spyglass, sunglass, tallgrass, trespass, underclass, underpass, upperclass, worldpass, yankass
Bumpass sounds like:
bambach, banpais, baumbach, biamby's, bimbos, bomb's, bombay's, bombeck, bombs, bonifacio, bonifas, bonobos, boombox, boomboxes, bumbaugh, bumpas, bumps, bumpus