Grubbs rhymes with:
grubs, grubs, rubs, shrubs, chubb's, club's, clubs, cubs, cubs', dubbs, dubs, flubs, grubs, hubbs, hubs, pubs, rubs, shrubs, snubs, stubbs, stubs, sub's, subs, tubbs, tubs
Grubbs sounds like:
garbacz, garbage, garp's, garps, gearbox, gearboxes, geographic, geographic's, gerbasi, gerbig, gervais, gervase, gervasi, gervasio, giraffes, graboski, grabowski, grabs, grabski, graffius, grapage, grapes, graphic, graphics, graphics', graphs, graves, graves's, gravies, gravois, grbavica, greaves, grieves, grievous, griffey's, griffis, gripes, grips, grivas, grooves, groppy's, group's, groupies, groups, groups', grove's, groves, grubaugh, grubs, gurevich