Gupton rhymes with:
lupton, upton, brampton, campton, captain, clapton, clopton, compton, crampton, crompton, crumpton, cumpton, frampton, hampton, hopton, kapton, kempton, kimpton, knapton, lampton, lipton, lupton, northampton, plimpton, plympton, sharpton, shipton, skipton, southampton, tipton, upton, westhampton